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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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6f41617bf2
Minor conflict in net/core/rtnetlink.c, David Ahern's bug fix in 'net' overlapped the renaming of a netlink attribute in net-next. Signed-off-by: David S. Miller <davem@davemloft.net>
3202 lines
90 KiB
C
3202 lines
90 KiB
C
/* QLogic qed NIC Driver
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* Copyright (c) 2015-2017 QLogic Corporation
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and /or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <linux/if_ether.h>
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#include <linux/if_vlan.h>
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#include <linux/ip.h>
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#include <linux/ipv6.h>
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#include <linux/spinlock.h>
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#include <linux/tcp.h>
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#include "qed_cxt.h"
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#include "qed_hw.h"
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#include "qed_ll2.h"
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#include "qed_rdma.h"
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#include "qed_reg_addr.h"
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#include "qed_sp.h"
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#include "qed_ooo.h"
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#define QED_IWARP_ORD_DEFAULT 32
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#define QED_IWARP_IRD_DEFAULT 32
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#define QED_IWARP_MAX_FW_MSS 4120
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#define QED_EP_SIG 0xecabcdef
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struct mpa_v2_hdr {
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__be16 ird;
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__be16 ord;
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};
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#define MPA_V2_PEER2PEER_MODEL 0x8000
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#define MPA_V2_SEND_RTR 0x4000 /* on ird */
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#define MPA_V2_READ_RTR 0x4000 /* on ord */
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#define MPA_V2_WRITE_RTR 0x8000
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#define MPA_V2_IRD_ORD_MASK 0x3FFF
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#define MPA_REV2(_mpa_rev) ((_mpa_rev) == MPA_NEGOTIATION_TYPE_ENHANCED)
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#define QED_IWARP_INVALID_TCP_CID 0xffffffff
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#define QED_IWARP_RCV_WND_SIZE_DEF (256 * 1024)
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#define QED_IWARP_RCV_WND_SIZE_MIN (0xffff)
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#define TIMESTAMP_HEADER_SIZE (12)
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#define QED_IWARP_MAX_FIN_RT_DEFAULT (2)
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#define QED_IWARP_TS_EN BIT(0)
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#define QED_IWARP_DA_EN BIT(1)
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#define QED_IWARP_PARAM_CRC_NEEDED (1)
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#define QED_IWARP_PARAM_P2P (1)
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#define QED_IWARP_DEF_MAX_RT_TIME (0)
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#define QED_IWARP_DEF_CWND_FACTOR (4)
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#define QED_IWARP_DEF_KA_MAX_PROBE_CNT (5)
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#define QED_IWARP_DEF_KA_TIMEOUT (1200000) /* 20 min */
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#define QED_IWARP_DEF_KA_INTERVAL (1000) /* 1 sec */
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static int qed_iwarp_async_event(struct qed_hwfn *p_hwfn,
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u8 fw_event_code, u16 echo,
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union event_ring_data *data,
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u8 fw_return_code);
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/* Override devinfo with iWARP specific values */
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void qed_iwarp_init_devinfo(struct qed_hwfn *p_hwfn)
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{
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struct qed_rdma_device *dev = p_hwfn->p_rdma_info->dev;
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dev->max_inline = IWARP_REQ_MAX_INLINE_DATA_SIZE;
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dev->max_qp = min_t(u32,
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IWARP_MAX_QPS,
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p_hwfn->p_rdma_info->num_qps) -
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QED_IWARP_PREALLOC_CNT;
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dev->max_cq = dev->max_qp;
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dev->max_qp_resp_rd_atomic_resc = QED_IWARP_IRD_DEFAULT;
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dev->max_qp_req_rd_atomic_resc = QED_IWARP_ORD_DEFAULT;
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}
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void qed_iwarp_init_hw(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
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{
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p_hwfn->rdma_prs_search_reg = PRS_REG_SEARCH_TCP;
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qed_wr(p_hwfn, p_ptt, p_hwfn->rdma_prs_search_reg, 1);
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p_hwfn->b_rdma_enabled_in_prs = true;
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}
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/* We have two cid maps, one for tcp which should be used only from passive
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* syn processing and replacing a pre-allocated ep in the list. The second
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* for active tcp and for QPs.
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*/
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static void qed_iwarp_cid_cleaned(struct qed_hwfn *p_hwfn, u32 cid)
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{
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cid -= qed_cxt_get_proto_cid_start(p_hwfn, p_hwfn->p_rdma_info->proto);
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spin_lock_bh(&p_hwfn->p_rdma_info->lock);
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if (cid < QED_IWARP_PREALLOC_CNT)
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qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map,
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cid);
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else
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qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, cid);
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spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
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}
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void
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qed_iwarp_init_fw_ramrod(struct qed_hwfn *p_hwfn,
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struct iwarp_init_func_ramrod_data *p_ramrod)
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{
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p_ramrod->iwarp.ll2_ooo_q_index =
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RESC_START(p_hwfn, QED_LL2_QUEUE) +
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p_hwfn->p_rdma_info->iwarp.ll2_ooo_handle;
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p_ramrod->tcp.max_fin_rt = QED_IWARP_MAX_FIN_RT_DEFAULT;
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return;
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}
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static int qed_iwarp_alloc_cid(struct qed_hwfn *p_hwfn, u32 *cid)
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{
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int rc;
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spin_lock_bh(&p_hwfn->p_rdma_info->lock);
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rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, cid);
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spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
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if (rc) {
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DP_NOTICE(p_hwfn, "Failed in allocating iwarp cid\n");
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return rc;
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}
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*cid += qed_cxt_get_proto_cid_start(p_hwfn, p_hwfn->p_rdma_info->proto);
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rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_CXT, *cid);
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if (rc)
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qed_iwarp_cid_cleaned(p_hwfn, *cid);
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return rc;
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}
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static void qed_iwarp_set_tcp_cid(struct qed_hwfn *p_hwfn, u32 cid)
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{
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cid -= qed_cxt_get_proto_cid_start(p_hwfn, p_hwfn->p_rdma_info->proto);
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spin_lock_bh(&p_hwfn->p_rdma_info->lock);
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qed_bmap_set_id(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map, cid);
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spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
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}
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/* This function allocates a cid for passive tcp (called from syn receive)
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* the reason it's separate from the regular cid allocation is because it
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* is assured that these cids already have ilt allocated. They are preallocated
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* to ensure that we won't need to allocate memory during syn processing
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*/
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static int qed_iwarp_alloc_tcp_cid(struct qed_hwfn *p_hwfn, u32 *cid)
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{
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int rc;
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spin_lock_bh(&p_hwfn->p_rdma_info->lock);
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rc = qed_rdma_bmap_alloc_id(p_hwfn,
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&p_hwfn->p_rdma_info->tcp_cid_map, cid);
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spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
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if (rc) {
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DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
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"can't allocate iwarp tcp cid max-count=%d\n",
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p_hwfn->p_rdma_info->tcp_cid_map.max_count);
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*cid = QED_IWARP_INVALID_TCP_CID;
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return rc;
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}
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*cid += qed_cxt_get_proto_cid_start(p_hwfn,
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p_hwfn->p_rdma_info->proto);
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return 0;
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}
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int qed_iwarp_create_qp(struct qed_hwfn *p_hwfn,
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struct qed_rdma_qp *qp,
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struct qed_rdma_create_qp_out_params *out_params)
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{
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struct iwarp_create_qp_ramrod_data *p_ramrod;
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struct qed_sp_init_data init_data;
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struct qed_spq_entry *p_ent;
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u16 physical_queue;
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u32 cid;
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int rc;
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qp->shared_queue = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
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IWARP_SHARED_QUEUE_PAGE_SIZE,
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&qp->shared_queue_phys_addr,
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GFP_KERNEL);
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if (!qp->shared_queue)
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return -ENOMEM;
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out_params->sq_pbl_virt = (u8 *)qp->shared_queue +
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IWARP_SHARED_QUEUE_PAGE_SQ_PBL_OFFSET;
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out_params->sq_pbl_phys = qp->shared_queue_phys_addr +
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IWARP_SHARED_QUEUE_PAGE_SQ_PBL_OFFSET;
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out_params->rq_pbl_virt = (u8 *)qp->shared_queue +
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IWARP_SHARED_QUEUE_PAGE_RQ_PBL_OFFSET;
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out_params->rq_pbl_phys = qp->shared_queue_phys_addr +
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IWARP_SHARED_QUEUE_PAGE_RQ_PBL_OFFSET;
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rc = qed_iwarp_alloc_cid(p_hwfn, &cid);
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if (rc)
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goto err1;
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qp->icid = (u16)cid;
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memset(&init_data, 0, sizeof(init_data));
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init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
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init_data.cid = qp->icid;
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init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
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rc = qed_sp_init_request(p_hwfn, &p_ent,
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IWARP_RAMROD_CMD_ID_CREATE_QP,
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PROTOCOLID_IWARP, &init_data);
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if (rc)
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goto err2;
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p_ramrod = &p_ent->ramrod.iwarp_create_qp;
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SET_FIELD(p_ramrod->flags,
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IWARP_CREATE_QP_RAMROD_DATA_FMR_AND_RESERVED_EN,
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qp->fmr_and_reserved_lkey);
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SET_FIELD(p_ramrod->flags,
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IWARP_CREATE_QP_RAMROD_DATA_SIGNALED_COMP, qp->signal_all);
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SET_FIELD(p_ramrod->flags,
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IWARP_CREATE_QP_RAMROD_DATA_RDMA_RD_EN,
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qp->incoming_rdma_read_en);
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SET_FIELD(p_ramrod->flags,
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IWARP_CREATE_QP_RAMROD_DATA_RDMA_WR_EN,
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qp->incoming_rdma_write_en);
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SET_FIELD(p_ramrod->flags,
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IWARP_CREATE_QP_RAMROD_DATA_ATOMIC_EN,
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qp->incoming_atomic_en);
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SET_FIELD(p_ramrod->flags,
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IWARP_CREATE_QP_RAMROD_DATA_SRQ_FLG, qp->use_srq);
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p_ramrod->pd = qp->pd;
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p_ramrod->sq_num_pages = qp->sq_num_pages;
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p_ramrod->rq_num_pages = qp->rq_num_pages;
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p_ramrod->srq_id.srq_idx = cpu_to_le16(qp->srq_id);
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p_ramrod->srq_id.opaque_fid = cpu_to_le16(p_hwfn->hw_info.opaque_fid);
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p_ramrod->qp_handle_for_cqe.hi = cpu_to_le32(qp->qp_handle.hi);
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p_ramrod->qp_handle_for_cqe.lo = cpu_to_le32(qp->qp_handle.lo);
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p_ramrod->cq_cid_for_sq =
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cpu_to_le32((p_hwfn->hw_info.opaque_fid << 16) | qp->sq_cq_id);
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p_ramrod->cq_cid_for_rq =
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cpu_to_le32((p_hwfn->hw_info.opaque_fid << 16) | qp->rq_cq_id);
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p_ramrod->dpi = cpu_to_le16(qp->dpi);
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physical_queue = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD);
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p_ramrod->physical_q0 = cpu_to_le16(physical_queue);
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physical_queue = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_ACK);
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p_ramrod->physical_q1 = cpu_to_le16(physical_queue);
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rc = qed_spq_post(p_hwfn, p_ent, NULL);
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if (rc)
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goto err2;
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return rc;
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err2:
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qed_iwarp_cid_cleaned(p_hwfn, cid);
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err1:
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dma_free_coherent(&p_hwfn->cdev->pdev->dev,
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IWARP_SHARED_QUEUE_PAGE_SIZE,
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qp->shared_queue, qp->shared_queue_phys_addr);
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return rc;
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}
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static int qed_iwarp_modify_fw(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp)
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{
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struct iwarp_modify_qp_ramrod_data *p_ramrod;
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struct qed_sp_init_data init_data;
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struct qed_spq_entry *p_ent;
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int rc;
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/* Get SPQ entry */
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memset(&init_data, 0, sizeof(init_data));
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init_data.cid = qp->icid;
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init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
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init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
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rc = qed_sp_init_request(p_hwfn, &p_ent,
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IWARP_RAMROD_CMD_ID_MODIFY_QP,
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p_hwfn->p_rdma_info->proto, &init_data);
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if (rc)
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return rc;
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p_ramrod = &p_ent->ramrod.iwarp_modify_qp;
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SET_FIELD(p_ramrod->flags, IWARP_MODIFY_QP_RAMROD_DATA_STATE_TRANS_EN,
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0x1);
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if (qp->iwarp_state == QED_IWARP_QP_STATE_CLOSING)
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p_ramrod->transition_to_state = IWARP_MODIFY_QP_STATE_CLOSING;
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else
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p_ramrod->transition_to_state = IWARP_MODIFY_QP_STATE_ERROR;
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rc = qed_spq_post(p_hwfn, p_ent, NULL);
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DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x)rc=%d\n", qp->icid, rc);
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return rc;
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}
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enum qed_iwarp_qp_state qed_roce2iwarp_state(enum qed_roce_qp_state state)
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{
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switch (state) {
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case QED_ROCE_QP_STATE_RESET:
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case QED_ROCE_QP_STATE_INIT:
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case QED_ROCE_QP_STATE_RTR:
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return QED_IWARP_QP_STATE_IDLE;
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case QED_ROCE_QP_STATE_RTS:
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return QED_IWARP_QP_STATE_RTS;
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case QED_ROCE_QP_STATE_SQD:
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return QED_IWARP_QP_STATE_CLOSING;
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case QED_ROCE_QP_STATE_ERR:
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return QED_IWARP_QP_STATE_ERROR;
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case QED_ROCE_QP_STATE_SQE:
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return QED_IWARP_QP_STATE_TERMINATE;
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default:
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return QED_IWARP_QP_STATE_ERROR;
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}
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}
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|
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static enum qed_roce_qp_state
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qed_iwarp2roce_state(enum qed_iwarp_qp_state state)
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{
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switch (state) {
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case QED_IWARP_QP_STATE_IDLE:
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return QED_ROCE_QP_STATE_INIT;
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case QED_IWARP_QP_STATE_RTS:
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return QED_ROCE_QP_STATE_RTS;
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case QED_IWARP_QP_STATE_TERMINATE:
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return QED_ROCE_QP_STATE_SQE;
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case QED_IWARP_QP_STATE_CLOSING:
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return QED_ROCE_QP_STATE_SQD;
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case QED_IWARP_QP_STATE_ERROR:
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return QED_ROCE_QP_STATE_ERR;
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default:
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return QED_ROCE_QP_STATE_ERR;
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}
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}
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|
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const static char *iwarp_state_names[] = {
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"IDLE",
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"RTS",
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"TERMINATE",
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"CLOSING",
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"ERROR",
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};
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|
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int
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qed_iwarp_modify_qp(struct qed_hwfn *p_hwfn,
|
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struct qed_rdma_qp *qp,
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enum qed_iwarp_qp_state new_state, bool internal)
|
|
{
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enum qed_iwarp_qp_state prev_iw_state;
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bool modify_fw = false;
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int rc = 0;
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|
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/* modify QP can be called from upper-layer or as a result of async
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* RST/FIN... therefore need to protect
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*/
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spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.qp_lock);
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prev_iw_state = qp->iwarp_state;
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|
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if (prev_iw_state == new_state) {
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spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.qp_lock);
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return 0;
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}
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|
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switch (prev_iw_state) {
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case QED_IWARP_QP_STATE_IDLE:
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switch (new_state) {
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case QED_IWARP_QP_STATE_RTS:
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qp->iwarp_state = QED_IWARP_QP_STATE_RTS;
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break;
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case QED_IWARP_QP_STATE_ERROR:
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qp->iwarp_state = QED_IWARP_QP_STATE_ERROR;
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|
if (!internal)
|
|
modify_fw = true;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case QED_IWARP_QP_STATE_RTS:
|
|
switch (new_state) {
|
|
case QED_IWARP_QP_STATE_CLOSING:
|
|
if (!internal)
|
|
modify_fw = true;
|
|
|
|
qp->iwarp_state = QED_IWARP_QP_STATE_CLOSING;
|
|
break;
|
|
case QED_IWARP_QP_STATE_ERROR:
|
|
if (!internal)
|
|
modify_fw = true;
|
|
qp->iwarp_state = QED_IWARP_QP_STATE_ERROR;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case QED_IWARP_QP_STATE_ERROR:
|
|
switch (new_state) {
|
|
case QED_IWARP_QP_STATE_IDLE:
|
|
|
|
qp->iwarp_state = new_state;
|
|
break;
|
|
case QED_IWARP_QP_STATE_CLOSING:
|
|
/* could happen due to race... do nothing.... */
|
|
break;
|
|
default:
|
|
rc = -EINVAL;
|
|
}
|
|
break;
|
|
case QED_IWARP_QP_STATE_TERMINATE:
|
|
case QED_IWARP_QP_STATE_CLOSING:
|
|
qp->iwarp_state = new_state;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x) %s --> %s%s\n",
|
|
qp->icid,
|
|
iwarp_state_names[prev_iw_state],
|
|
iwarp_state_names[qp->iwarp_state],
|
|
internal ? "internal" : "");
|
|
|
|
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.qp_lock);
|
|
|
|
if (modify_fw)
|
|
rc = qed_iwarp_modify_fw(p_hwfn, qp);
|
|
|
|
return rc;
|
|
}
|
|
|
|
int qed_iwarp_fw_destroy(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp)
|
|
{
|
|
struct qed_sp_init_data init_data;
|
|
struct qed_spq_entry *p_ent;
|
|
int rc;
|
|
|
|
/* Get SPQ entry */
|
|
memset(&init_data, 0, sizeof(init_data));
|
|
init_data.cid = qp->icid;
|
|
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
|
|
init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
|
|
|
|
rc = qed_sp_init_request(p_hwfn, &p_ent,
|
|
IWARP_RAMROD_CMD_ID_DESTROY_QP,
|
|
p_hwfn->p_rdma_info->proto, &init_data);
|
|
if (rc)
|
|
return rc;
|
|
|
|
rc = qed_spq_post(p_hwfn, p_ent, NULL);
|
|
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x) rc = %d\n", qp->icid, rc);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void qed_iwarp_destroy_ep(struct qed_hwfn *p_hwfn,
|
|
struct qed_iwarp_ep *ep,
|
|
bool remove_from_active_list)
|
|
{
|
|
dma_free_coherent(&p_hwfn->cdev->pdev->dev,
|
|
sizeof(*ep->ep_buffer_virt),
|
|
ep->ep_buffer_virt, ep->ep_buffer_phys);
|
|
|
|
if (remove_from_active_list) {
|
|
spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
list_del(&ep->list_entry);
|
|
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
}
|
|
|
|
if (ep->qp)
|
|
ep->qp->ep = NULL;
|
|
|
|
kfree(ep);
|
|
}
|
|
|
|
int qed_iwarp_destroy_qp(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp)
|
|
{
|
|
struct qed_iwarp_ep *ep = qp->ep;
|
|
int wait_count = 0;
|
|
int rc = 0;
|
|
|
|
if (qp->iwarp_state != QED_IWARP_QP_STATE_ERROR) {
|
|
rc = qed_iwarp_modify_qp(p_hwfn, qp,
|
|
QED_IWARP_QP_STATE_ERROR, false);
|
|
if (rc)
|
|
return rc;
|
|
}
|
|
|
|
/* Make sure ep is closed before returning and freeing memory. */
|
|
if (ep) {
|
|
while (ep->state != QED_IWARP_EP_CLOSED && wait_count++ < 200)
|
|
msleep(100);
|
|
|
|
if (ep->state != QED_IWARP_EP_CLOSED)
|
|
DP_NOTICE(p_hwfn, "ep state close timeout state=%x\n",
|
|
ep->state);
|
|
|
|
qed_iwarp_destroy_ep(p_hwfn, ep, false);
|
|
}
|
|
|
|
rc = qed_iwarp_fw_destroy(p_hwfn, qp);
|
|
|
|
if (qp->shared_queue)
|
|
dma_free_coherent(&p_hwfn->cdev->pdev->dev,
|
|
IWARP_SHARED_QUEUE_PAGE_SIZE,
|
|
qp->shared_queue, qp->shared_queue_phys_addr);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int
|
|
qed_iwarp_create_ep(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep **ep_out)
|
|
{
|
|
struct qed_iwarp_ep *ep;
|
|
int rc;
|
|
|
|
ep = kzalloc(sizeof(*ep), GFP_KERNEL);
|
|
if (!ep)
|
|
return -ENOMEM;
|
|
|
|
ep->state = QED_IWARP_EP_INIT;
|
|
|
|
ep->ep_buffer_virt = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
|
|
sizeof(*ep->ep_buffer_virt),
|
|
&ep->ep_buffer_phys,
|
|
GFP_KERNEL);
|
|
if (!ep->ep_buffer_virt) {
|
|
rc = -ENOMEM;
|
|
goto err;
|
|
}
|
|
|
|
ep->sig = QED_EP_SIG;
|
|
|
|
*ep_out = ep;
|
|
|
|
return 0;
|
|
|
|
err:
|
|
kfree(ep);
|
|
return rc;
|
|
}
|
|
|
|
static void
|
|
qed_iwarp_print_tcp_ramrod(struct qed_hwfn *p_hwfn,
|
|
struct iwarp_tcp_offload_ramrod_data *p_tcp_ramrod)
|
|
{
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "local_mac=%x %x %x, remote_mac=%x %x %x\n",
|
|
p_tcp_ramrod->tcp.local_mac_addr_lo,
|
|
p_tcp_ramrod->tcp.local_mac_addr_mid,
|
|
p_tcp_ramrod->tcp.local_mac_addr_hi,
|
|
p_tcp_ramrod->tcp.remote_mac_addr_lo,
|
|
p_tcp_ramrod->tcp.remote_mac_addr_mid,
|
|
p_tcp_ramrod->tcp.remote_mac_addr_hi);
|
|
|
|
if (p_tcp_ramrod->tcp.ip_version == TCP_IPV4) {
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"local_ip=%pI4h:%x, remote_ip=%pI4h:%x, vlan=%x\n",
|
|
p_tcp_ramrod->tcp.local_ip,
|
|
p_tcp_ramrod->tcp.local_port,
|
|
p_tcp_ramrod->tcp.remote_ip,
|
|
p_tcp_ramrod->tcp.remote_port,
|
|
p_tcp_ramrod->tcp.vlan_id);
|
|
} else {
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"local_ip=%pI6:%x, remote_ip=%pI6:%x, vlan=%x\n",
|
|
p_tcp_ramrod->tcp.local_ip,
|
|
p_tcp_ramrod->tcp.local_port,
|
|
p_tcp_ramrod->tcp.remote_ip,
|
|
p_tcp_ramrod->tcp.remote_port,
|
|
p_tcp_ramrod->tcp.vlan_id);
|
|
}
|
|
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"flow_label=%x, ttl=%x, tos_or_tc=%x, mss=%x, rcv_wnd_scale=%x, connect_mode=%x, flags=%x\n",
|
|
p_tcp_ramrod->tcp.flow_label,
|
|
p_tcp_ramrod->tcp.ttl,
|
|
p_tcp_ramrod->tcp.tos_or_tc,
|
|
p_tcp_ramrod->tcp.mss,
|
|
p_tcp_ramrod->tcp.rcv_wnd_scale,
|
|
p_tcp_ramrod->tcp.connect_mode,
|
|
p_tcp_ramrod->tcp.flags);
|
|
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "syn_ip_payload_length=%x, lo=%x, hi=%x\n",
|
|
p_tcp_ramrod->tcp.syn_ip_payload_length,
|
|
p_tcp_ramrod->tcp.syn_phy_addr_lo,
|
|
p_tcp_ramrod->tcp.syn_phy_addr_hi);
|
|
}
|
|
|
|
static int
|
|
qed_iwarp_tcp_offload(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep)
|
|
{
|
|
struct qed_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp;
|
|
struct iwarp_tcp_offload_ramrod_data *p_tcp_ramrod;
|
|
struct tcp_offload_params_opt2 *tcp;
|
|
struct qed_sp_init_data init_data;
|
|
struct qed_spq_entry *p_ent;
|
|
dma_addr_t async_output_phys;
|
|
dma_addr_t in_pdata_phys;
|
|
u16 physical_q;
|
|
u8 tcp_flags;
|
|
int rc;
|
|
int i;
|
|
|
|
memset(&init_data, 0, sizeof(init_data));
|
|
init_data.cid = ep->tcp_cid;
|
|
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
|
|
if (ep->connect_mode == TCP_CONNECT_PASSIVE)
|
|
init_data.comp_mode = QED_SPQ_MODE_CB;
|
|
else
|
|
init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
|
|
|
|
rc = qed_sp_init_request(p_hwfn, &p_ent,
|
|
IWARP_RAMROD_CMD_ID_TCP_OFFLOAD,
|
|
PROTOCOLID_IWARP, &init_data);
|
|
if (rc)
|
|
return rc;
|
|
|
|
p_tcp_ramrod = &p_ent->ramrod.iwarp_tcp_offload;
|
|
|
|
in_pdata_phys = ep->ep_buffer_phys +
|
|
offsetof(struct qed_iwarp_ep_memory, in_pdata);
|
|
DMA_REGPAIR_LE(p_tcp_ramrod->iwarp.incoming_ulp_buffer.addr,
|
|
in_pdata_phys);
|
|
|
|
p_tcp_ramrod->iwarp.incoming_ulp_buffer.len =
|
|
cpu_to_le16(sizeof(ep->ep_buffer_virt->in_pdata));
|
|
|
|
async_output_phys = ep->ep_buffer_phys +
|
|
offsetof(struct qed_iwarp_ep_memory, async_output);
|
|
DMA_REGPAIR_LE(p_tcp_ramrod->iwarp.async_eqe_output_buf,
|
|
async_output_phys);
|
|
|
|
p_tcp_ramrod->iwarp.handle_for_async.hi = cpu_to_le32(PTR_HI(ep));
|
|
p_tcp_ramrod->iwarp.handle_for_async.lo = cpu_to_le32(PTR_LO(ep));
|
|
|
|
physical_q = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD);
|
|
p_tcp_ramrod->iwarp.physical_q0 = cpu_to_le16(physical_q);
|
|
physical_q = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_ACK);
|
|
p_tcp_ramrod->iwarp.physical_q1 = cpu_to_le16(physical_q);
|
|
p_tcp_ramrod->iwarp.mpa_mode = iwarp_info->mpa_rev;
|
|
|
|
tcp = &p_tcp_ramrod->tcp;
|
|
qed_set_fw_mac_addr(&tcp->remote_mac_addr_hi,
|
|
&tcp->remote_mac_addr_mid,
|
|
&tcp->remote_mac_addr_lo, ep->remote_mac_addr);
|
|
qed_set_fw_mac_addr(&tcp->local_mac_addr_hi, &tcp->local_mac_addr_mid,
|
|
&tcp->local_mac_addr_lo, ep->local_mac_addr);
|
|
|
|
tcp->vlan_id = cpu_to_le16(ep->cm_info.vlan);
|
|
|
|
tcp_flags = p_hwfn->p_rdma_info->iwarp.tcp_flags;
|
|
tcp->flags = 0;
|
|
SET_FIELD(tcp->flags, TCP_OFFLOAD_PARAMS_OPT2_TS_EN,
|
|
!!(tcp_flags & QED_IWARP_TS_EN));
|
|
|
|
SET_FIELD(tcp->flags, TCP_OFFLOAD_PARAMS_OPT2_DA_EN,
|
|
!!(tcp_flags & QED_IWARP_DA_EN));
|
|
|
|
tcp->ip_version = ep->cm_info.ip_version;
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
tcp->remote_ip[i] = cpu_to_le32(ep->cm_info.remote_ip[i]);
|
|
tcp->local_ip[i] = cpu_to_le32(ep->cm_info.local_ip[i]);
|
|
}
|
|
|
|
tcp->remote_port = cpu_to_le16(ep->cm_info.remote_port);
|
|
tcp->local_port = cpu_to_le16(ep->cm_info.local_port);
|
|
tcp->mss = cpu_to_le16(ep->mss);
|
|
tcp->flow_label = 0;
|
|
tcp->ttl = 0x40;
|
|
tcp->tos_or_tc = 0;
|
|
|
|
tcp->max_rt_time = QED_IWARP_DEF_MAX_RT_TIME;
|
|
tcp->cwnd = QED_IWARP_DEF_CWND_FACTOR * tcp->mss;
|
|
tcp->ka_max_probe_cnt = QED_IWARP_DEF_KA_MAX_PROBE_CNT;
|
|
tcp->ka_timeout = QED_IWARP_DEF_KA_TIMEOUT;
|
|
tcp->ka_interval = QED_IWARP_DEF_KA_INTERVAL;
|
|
|
|
tcp->rcv_wnd_scale = (u8)p_hwfn->p_rdma_info->iwarp.rcv_wnd_scale;
|
|
tcp->connect_mode = ep->connect_mode;
|
|
|
|
if (ep->connect_mode == TCP_CONNECT_PASSIVE) {
|
|
tcp->syn_ip_payload_length =
|
|
cpu_to_le16(ep->syn_ip_payload_length);
|
|
tcp->syn_phy_addr_hi = DMA_HI_LE(ep->syn_phy_addr);
|
|
tcp->syn_phy_addr_lo = DMA_LO_LE(ep->syn_phy_addr);
|
|
}
|
|
|
|
qed_iwarp_print_tcp_ramrod(p_hwfn, p_tcp_ramrod);
|
|
|
|
rc = qed_spq_post(p_hwfn, p_ent, NULL);
|
|
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"EP(0x%x) Offload completed rc=%d\n", ep->tcp_cid, rc);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void
|
|
qed_iwarp_mpa_received(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep)
|
|
{
|
|
struct qed_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp;
|
|
struct qed_iwarp_cm_event_params params;
|
|
struct mpa_v2_hdr *mpa_v2;
|
|
union async_output *async_data;
|
|
u16 mpa_ord, mpa_ird;
|
|
u8 mpa_hdr_size = 0;
|
|
u8 mpa_rev;
|
|
|
|
async_data = &ep->ep_buffer_virt->async_output;
|
|
|
|
mpa_rev = async_data->mpa_request.mpa_handshake_mode;
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"private_data_len=%x handshake_mode=%x private_data=(%x)\n",
|
|
async_data->mpa_request.ulp_data_len,
|
|
mpa_rev, *((u32 *)(ep->ep_buffer_virt->in_pdata)));
|
|
|
|
if (mpa_rev == MPA_NEGOTIATION_TYPE_ENHANCED) {
|
|
/* Read ord/ird values from private data buffer */
|
|
mpa_v2 = (struct mpa_v2_hdr *)ep->ep_buffer_virt->in_pdata;
|
|
mpa_hdr_size = sizeof(*mpa_v2);
|
|
|
|
mpa_ord = ntohs(mpa_v2->ord);
|
|
mpa_ird = ntohs(mpa_v2->ird);
|
|
|
|
/* Temprary store in cm_info incoming ord/ird requested, later
|
|
* replace with negotiated value during accept
|
|
*/
|
|
ep->cm_info.ord = (u8)min_t(u16,
|
|
(mpa_ord & MPA_V2_IRD_ORD_MASK),
|
|
QED_IWARP_ORD_DEFAULT);
|
|
|
|
ep->cm_info.ird = (u8)min_t(u16,
|
|
(mpa_ird & MPA_V2_IRD_ORD_MASK),
|
|
QED_IWARP_IRD_DEFAULT);
|
|
|
|
/* Peer2Peer negotiation */
|
|
ep->rtr_type = MPA_RTR_TYPE_NONE;
|
|
if (mpa_ird & MPA_V2_PEER2PEER_MODEL) {
|
|
if (mpa_ord & MPA_V2_WRITE_RTR)
|
|
ep->rtr_type |= MPA_RTR_TYPE_ZERO_WRITE;
|
|
|
|
if (mpa_ord & MPA_V2_READ_RTR)
|
|
ep->rtr_type |= MPA_RTR_TYPE_ZERO_READ;
|
|
|
|
if (mpa_ird & MPA_V2_SEND_RTR)
|
|
ep->rtr_type |= MPA_RTR_TYPE_ZERO_SEND;
|
|
|
|
ep->rtr_type &= iwarp_info->rtr_type;
|
|
|
|
/* if we're left with no match send our capabilities */
|
|
if (ep->rtr_type == MPA_RTR_TYPE_NONE)
|
|
ep->rtr_type = iwarp_info->rtr_type;
|
|
}
|
|
|
|
ep->mpa_rev = MPA_NEGOTIATION_TYPE_ENHANCED;
|
|
} else {
|
|
ep->cm_info.ord = QED_IWARP_ORD_DEFAULT;
|
|
ep->cm_info.ird = QED_IWARP_IRD_DEFAULT;
|
|
ep->mpa_rev = MPA_NEGOTIATION_TYPE_BASIC;
|
|
}
|
|
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"MPA_NEGOTIATE (v%d): ORD: 0x%x IRD: 0x%x rtr:0x%x ulp_data_len = %x mpa_hdr_size = %x\n",
|
|
mpa_rev, ep->cm_info.ord, ep->cm_info.ird, ep->rtr_type,
|
|
async_data->mpa_request.ulp_data_len, mpa_hdr_size);
|
|
|
|
/* Strip mpa v2 hdr from private data before sending to upper layer */
|
|
ep->cm_info.private_data = ep->ep_buffer_virt->in_pdata + mpa_hdr_size;
|
|
|
|
ep->cm_info.private_data_len = async_data->mpa_request.ulp_data_len -
|
|
mpa_hdr_size;
|
|
|
|
params.event = QED_IWARP_EVENT_MPA_REQUEST;
|
|
params.cm_info = &ep->cm_info;
|
|
params.ep_context = ep;
|
|
params.status = 0;
|
|
|
|
ep->state = QED_IWARP_EP_MPA_REQ_RCVD;
|
|
ep->event_cb(ep->cb_context, ¶ms);
|
|
}
|
|
|
|
static int
|
|
qed_iwarp_mpa_offload(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep)
|
|
{
|
|
struct iwarp_mpa_offload_ramrod_data *p_mpa_ramrod;
|
|
struct qed_iwarp_info *iwarp_info;
|
|
struct qed_sp_init_data init_data;
|
|
dma_addr_t async_output_phys;
|
|
struct qed_spq_entry *p_ent;
|
|
dma_addr_t out_pdata_phys;
|
|
dma_addr_t in_pdata_phys;
|
|
struct qed_rdma_qp *qp;
|
|
bool reject;
|
|
int rc;
|
|
|
|
if (!ep)
|
|
return -EINVAL;
|
|
|
|
qp = ep->qp;
|
|
reject = !qp;
|
|
|
|
memset(&init_data, 0, sizeof(init_data));
|
|
init_data.cid = reject ? ep->tcp_cid : qp->icid;
|
|
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
|
|
|
|
if (ep->connect_mode == TCP_CONNECT_ACTIVE)
|
|
init_data.comp_mode = QED_SPQ_MODE_CB;
|
|
else
|
|
init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
|
|
|
|
rc = qed_sp_init_request(p_hwfn, &p_ent,
|
|
IWARP_RAMROD_CMD_ID_MPA_OFFLOAD,
|
|
PROTOCOLID_IWARP, &init_data);
|
|
if (rc)
|
|
return rc;
|
|
|
|
p_mpa_ramrod = &p_ent->ramrod.iwarp_mpa_offload;
|
|
out_pdata_phys = ep->ep_buffer_phys +
|
|
offsetof(struct qed_iwarp_ep_memory, out_pdata);
|
|
DMA_REGPAIR_LE(p_mpa_ramrod->common.outgoing_ulp_buffer.addr,
|
|
out_pdata_phys);
|
|
p_mpa_ramrod->common.outgoing_ulp_buffer.len =
|
|
ep->cm_info.private_data_len;
|
|
p_mpa_ramrod->common.crc_needed = p_hwfn->p_rdma_info->iwarp.crc_needed;
|
|
|
|
p_mpa_ramrod->common.out_rq.ord = ep->cm_info.ord;
|
|
p_mpa_ramrod->common.out_rq.ird = ep->cm_info.ird;
|
|
|
|
p_mpa_ramrod->tcp_cid = p_hwfn->hw_info.opaque_fid << 16 | ep->tcp_cid;
|
|
|
|
in_pdata_phys = ep->ep_buffer_phys +
|
|
offsetof(struct qed_iwarp_ep_memory, in_pdata);
|
|
p_mpa_ramrod->tcp_connect_side = ep->connect_mode;
|
|
DMA_REGPAIR_LE(p_mpa_ramrod->incoming_ulp_buffer.addr,
|
|
in_pdata_phys);
|
|
p_mpa_ramrod->incoming_ulp_buffer.len =
|
|
cpu_to_le16(sizeof(ep->ep_buffer_virt->in_pdata));
|
|
async_output_phys = ep->ep_buffer_phys +
|
|
offsetof(struct qed_iwarp_ep_memory, async_output);
|
|
DMA_REGPAIR_LE(p_mpa_ramrod->async_eqe_output_buf,
|
|
async_output_phys);
|
|
p_mpa_ramrod->handle_for_async.hi = cpu_to_le32(PTR_HI(ep));
|
|
p_mpa_ramrod->handle_for_async.lo = cpu_to_le32(PTR_LO(ep));
|
|
|
|
if (!reject) {
|
|
DMA_REGPAIR_LE(p_mpa_ramrod->shared_queue_addr,
|
|
qp->shared_queue_phys_addr);
|
|
p_mpa_ramrod->stats_counter_id =
|
|
RESC_START(p_hwfn, QED_RDMA_STATS_QUEUE) + qp->stats_queue;
|
|
} else {
|
|
p_mpa_ramrod->common.reject = 1;
|
|
}
|
|
|
|
iwarp_info = &p_hwfn->p_rdma_info->iwarp;
|
|
p_mpa_ramrod->rcv_wnd = iwarp_info->rcv_wnd_size;
|
|
p_mpa_ramrod->mode = ep->mpa_rev;
|
|
SET_FIELD(p_mpa_ramrod->rtr_pref,
|
|
IWARP_MPA_OFFLOAD_RAMROD_DATA_RTR_SUPPORTED, ep->rtr_type);
|
|
|
|
ep->state = QED_IWARP_EP_MPA_OFFLOADED;
|
|
rc = qed_spq_post(p_hwfn, p_ent, NULL);
|
|
if (!reject)
|
|
ep->cid = qp->icid; /* Now they're migrated. */
|
|
|
|
DP_VERBOSE(p_hwfn,
|
|
QED_MSG_RDMA,
|
|
"QP(0x%x) EP(0x%x) MPA Offload rc = %d IRD=0x%x ORD=0x%x rtr_type=%d mpa_rev=%d reject=%d\n",
|
|
reject ? 0xffff : qp->icid,
|
|
ep->tcp_cid,
|
|
rc,
|
|
ep->cm_info.ird,
|
|
ep->cm_info.ord, ep->rtr_type, ep->mpa_rev, reject);
|
|
return rc;
|
|
}
|
|
|
|
static void
|
|
qed_iwarp_return_ep(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep)
|
|
{
|
|
ep->state = QED_IWARP_EP_INIT;
|
|
if (ep->qp)
|
|
ep->qp->ep = NULL;
|
|
ep->qp = NULL;
|
|
memset(&ep->cm_info, 0, sizeof(ep->cm_info));
|
|
|
|
if (ep->tcp_cid == QED_IWARP_INVALID_TCP_CID) {
|
|
/* We don't care about the return code, it's ok if tcp_cid
|
|
* remains invalid...in this case we'll defer allocation
|
|
*/
|
|
qed_iwarp_alloc_tcp_cid(p_hwfn, &ep->tcp_cid);
|
|
}
|
|
spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
|
|
list_move_tail(&ep->list_entry,
|
|
&p_hwfn->p_rdma_info->iwarp.ep_free_list);
|
|
|
|
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
}
|
|
|
|
static void
|
|
qed_iwarp_parse_private_data(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep)
|
|
{
|
|
struct mpa_v2_hdr *mpa_v2_params;
|
|
union async_output *async_data;
|
|
u16 mpa_ird, mpa_ord;
|
|
u8 mpa_data_size = 0;
|
|
|
|
if (MPA_REV2(p_hwfn->p_rdma_info->iwarp.mpa_rev)) {
|
|
mpa_v2_params =
|
|
(struct mpa_v2_hdr *)(ep->ep_buffer_virt->in_pdata);
|
|
mpa_data_size = sizeof(*mpa_v2_params);
|
|
mpa_ird = ntohs(mpa_v2_params->ird);
|
|
mpa_ord = ntohs(mpa_v2_params->ord);
|
|
|
|
ep->cm_info.ird = (u8)(mpa_ord & MPA_V2_IRD_ORD_MASK);
|
|
ep->cm_info.ord = (u8)(mpa_ird & MPA_V2_IRD_ORD_MASK);
|
|
}
|
|
async_data = &ep->ep_buffer_virt->async_output;
|
|
|
|
ep->cm_info.private_data = ep->ep_buffer_virt->in_pdata + mpa_data_size;
|
|
ep->cm_info.private_data_len = async_data->mpa_response.ulp_data_len -
|
|
mpa_data_size;
|
|
}
|
|
|
|
static void
|
|
qed_iwarp_mpa_reply_arrived(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep)
|
|
{
|
|
struct qed_iwarp_cm_event_params params;
|
|
|
|
if (ep->connect_mode == TCP_CONNECT_PASSIVE) {
|
|
DP_NOTICE(p_hwfn,
|
|
"MPA reply event not expected on passive side!\n");
|
|
return;
|
|
}
|
|
|
|
params.event = QED_IWARP_EVENT_ACTIVE_MPA_REPLY;
|
|
|
|
qed_iwarp_parse_private_data(p_hwfn, ep);
|
|
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"MPA_NEGOTIATE (v%d): ORD: 0x%x IRD: 0x%x\n",
|
|
ep->mpa_rev, ep->cm_info.ord, ep->cm_info.ird);
|
|
|
|
params.cm_info = &ep->cm_info;
|
|
params.ep_context = ep;
|
|
params.status = 0;
|
|
|
|
ep->mpa_reply_processed = true;
|
|
|
|
ep->event_cb(ep->cb_context, ¶ms);
|
|
}
|
|
|
|
#define QED_IWARP_CONNECT_MODE_STRING(ep) \
|
|
((ep)->connect_mode == TCP_CONNECT_PASSIVE) ? "Passive" : "Active"
|
|
|
|
/* Called as a result of the event:
|
|
* IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_COMPLETE
|
|
*/
|
|
static void
|
|
qed_iwarp_mpa_complete(struct qed_hwfn *p_hwfn,
|
|
struct qed_iwarp_ep *ep, u8 fw_return_code)
|
|
{
|
|
struct qed_iwarp_cm_event_params params;
|
|
|
|
if (ep->connect_mode == TCP_CONNECT_ACTIVE)
|
|
params.event = QED_IWARP_EVENT_ACTIVE_COMPLETE;
|
|
else
|
|
params.event = QED_IWARP_EVENT_PASSIVE_COMPLETE;
|
|
|
|
if (ep->connect_mode == TCP_CONNECT_ACTIVE && !ep->mpa_reply_processed)
|
|
qed_iwarp_parse_private_data(p_hwfn, ep);
|
|
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"MPA_NEGOTIATE (v%d): ORD: 0x%x IRD: 0x%x\n",
|
|
ep->mpa_rev, ep->cm_info.ord, ep->cm_info.ird);
|
|
|
|
params.cm_info = &ep->cm_info;
|
|
|
|
params.ep_context = ep;
|
|
|
|
ep->state = QED_IWARP_EP_CLOSED;
|
|
|
|
switch (fw_return_code) {
|
|
case RDMA_RETURN_OK:
|
|
ep->qp->max_rd_atomic_req = ep->cm_info.ord;
|
|
ep->qp->max_rd_atomic_resp = ep->cm_info.ird;
|
|
qed_iwarp_modify_qp(p_hwfn, ep->qp, QED_IWARP_QP_STATE_RTS, 1);
|
|
ep->state = QED_IWARP_EP_ESTABLISHED;
|
|
params.status = 0;
|
|
break;
|
|
case IWARP_CONN_ERROR_MPA_TIMEOUT:
|
|
DP_NOTICE(p_hwfn, "%s(0x%x) MPA timeout\n",
|
|
QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid);
|
|
params.status = -EBUSY;
|
|
break;
|
|
case IWARP_CONN_ERROR_MPA_ERROR_REJECT:
|
|
DP_NOTICE(p_hwfn, "%s(0x%x) MPA Reject\n",
|
|
QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid);
|
|
params.status = -ECONNREFUSED;
|
|
break;
|
|
case IWARP_CONN_ERROR_MPA_RST:
|
|
DP_NOTICE(p_hwfn, "%s(0x%x) MPA reset(tcp cid: 0x%x)\n",
|
|
QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid,
|
|
ep->tcp_cid);
|
|
params.status = -ECONNRESET;
|
|
break;
|
|
case IWARP_CONN_ERROR_MPA_FIN:
|
|
DP_NOTICE(p_hwfn, "%s(0x%x) MPA received FIN\n",
|
|
QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid);
|
|
params.status = -ECONNREFUSED;
|
|
break;
|
|
case IWARP_CONN_ERROR_MPA_INSUF_IRD:
|
|
DP_NOTICE(p_hwfn, "%s(0x%x) MPA insufficient ird\n",
|
|
QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid);
|
|
params.status = -ECONNREFUSED;
|
|
break;
|
|
case IWARP_CONN_ERROR_MPA_RTR_MISMATCH:
|
|
DP_NOTICE(p_hwfn, "%s(0x%x) MPA RTR MISMATCH\n",
|
|
QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid);
|
|
params.status = -ECONNREFUSED;
|
|
break;
|
|
case IWARP_CONN_ERROR_MPA_INVALID_PACKET:
|
|
DP_NOTICE(p_hwfn, "%s(0x%x) MPA Invalid Packet\n",
|
|
QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid);
|
|
params.status = -ECONNREFUSED;
|
|
break;
|
|
case IWARP_CONN_ERROR_MPA_LOCAL_ERROR:
|
|
DP_NOTICE(p_hwfn, "%s(0x%x) MPA Local Error\n",
|
|
QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid);
|
|
params.status = -ECONNREFUSED;
|
|
break;
|
|
case IWARP_CONN_ERROR_MPA_TERMINATE:
|
|
DP_NOTICE(p_hwfn, "%s(0x%x) MPA TERMINATE\n",
|
|
QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid);
|
|
params.status = -ECONNREFUSED;
|
|
break;
|
|
default:
|
|
params.status = -ECONNRESET;
|
|
break;
|
|
}
|
|
|
|
ep->event_cb(ep->cb_context, ¶ms);
|
|
|
|
/* on passive side, if there is no associated QP (REJECT) we need to
|
|
* return the ep to the pool, (in the regular case we add an element
|
|
* in accept instead of this one.
|
|
* In both cases we need to remove it from the ep_list.
|
|
*/
|
|
if (fw_return_code != RDMA_RETURN_OK) {
|
|
ep->tcp_cid = QED_IWARP_INVALID_TCP_CID;
|
|
if ((ep->connect_mode == TCP_CONNECT_PASSIVE) &&
|
|
(!ep->qp)) { /* Rejected */
|
|
qed_iwarp_return_ep(p_hwfn, ep);
|
|
} else {
|
|
spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
list_del(&ep->list_entry);
|
|
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
qed_iwarp_mpa_v2_set_private(struct qed_hwfn *p_hwfn,
|
|
struct qed_iwarp_ep *ep, u8 *mpa_data_size)
|
|
{
|
|
struct mpa_v2_hdr *mpa_v2_params;
|
|
u16 mpa_ird, mpa_ord;
|
|
|
|
*mpa_data_size = 0;
|
|
if (MPA_REV2(ep->mpa_rev)) {
|
|
mpa_v2_params =
|
|
(struct mpa_v2_hdr *)ep->ep_buffer_virt->out_pdata;
|
|
*mpa_data_size = sizeof(*mpa_v2_params);
|
|
|
|
mpa_ird = (u16)ep->cm_info.ird;
|
|
mpa_ord = (u16)ep->cm_info.ord;
|
|
|
|
if (ep->rtr_type != MPA_RTR_TYPE_NONE) {
|
|
mpa_ird |= MPA_V2_PEER2PEER_MODEL;
|
|
|
|
if (ep->rtr_type & MPA_RTR_TYPE_ZERO_SEND)
|
|
mpa_ird |= MPA_V2_SEND_RTR;
|
|
|
|
if (ep->rtr_type & MPA_RTR_TYPE_ZERO_WRITE)
|
|
mpa_ord |= MPA_V2_WRITE_RTR;
|
|
|
|
if (ep->rtr_type & MPA_RTR_TYPE_ZERO_READ)
|
|
mpa_ord |= MPA_V2_READ_RTR;
|
|
}
|
|
|
|
mpa_v2_params->ird = htons(mpa_ird);
|
|
mpa_v2_params->ord = htons(mpa_ord);
|
|
|
|
DP_VERBOSE(p_hwfn,
|
|
QED_MSG_RDMA,
|
|
"MPA_NEGOTIATE Header: [%x ord:%x ird] %x ord:%x ird:%x peer2peer:%x rtr_send:%x rtr_write:%x rtr_read:%x\n",
|
|
mpa_v2_params->ird,
|
|
mpa_v2_params->ord,
|
|
*((u32 *)mpa_v2_params),
|
|
mpa_ord & MPA_V2_IRD_ORD_MASK,
|
|
mpa_ird & MPA_V2_IRD_ORD_MASK,
|
|
!!(mpa_ird & MPA_V2_PEER2PEER_MODEL),
|
|
!!(mpa_ird & MPA_V2_SEND_RTR),
|
|
!!(mpa_ord & MPA_V2_WRITE_RTR),
|
|
!!(mpa_ord & MPA_V2_READ_RTR));
|
|
}
|
|
}
|
|
|
|
int qed_iwarp_connect(void *rdma_cxt,
|
|
struct qed_iwarp_connect_in *iparams,
|
|
struct qed_iwarp_connect_out *oparams)
|
|
{
|
|
struct qed_hwfn *p_hwfn = rdma_cxt;
|
|
struct qed_iwarp_info *iwarp_info;
|
|
struct qed_iwarp_ep *ep;
|
|
u8 mpa_data_size = 0;
|
|
u32 cid;
|
|
int rc;
|
|
|
|
if ((iparams->cm_info.ord > QED_IWARP_ORD_DEFAULT) ||
|
|
(iparams->cm_info.ird > QED_IWARP_IRD_DEFAULT)) {
|
|
DP_NOTICE(p_hwfn,
|
|
"QP(0x%x) ERROR: Invalid ord(0x%x)/ird(0x%x)\n",
|
|
iparams->qp->icid, iparams->cm_info.ord,
|
|
iparams->cm_info.ird);
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
iwarp_info = &p_hwfn->p_rdma_info->iwarp;
|
|
|
|
/* Allocate ep object */
|
|
rc = qed_iwarp_alloc_cid(p_hwfn, &cid);
|
|
if (rc)
|
|
return rc;
|
|
|
|
rc = qed_iwarp_create_ep(p_hwfn, &ep);
|
|
if (rc)
|
|
goto err;
|
|
|
|
ep->tcp_cid = cid;
|
|
|
|
spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
list_add_tail(&ep->list_entry, &p_hwfn->p_rdma_info->iwarp.ep_list);
|
|
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
|
|
ep->qp = iparams->qp;
|
|
ep->qp->ep = ep;
|
|
ether_addr_copy(ep->remote_mac_addr, iparams->remote_mac_addr);
|
|
ether_addr_copy(ep->local_mac_addr, iparams->local_mac_addr);
|
|
memcpy(&ep->cm_info, &iparams->cm_info, sizeof(ep->cm_info));
|
|
|
|
ep->cm_info.ord = iparams->cm_info.ord;
|
|
ep->cm_info.ird = iparams->cm_info.ird;
|
|
|
|
ep->rtr_type = iwarp_info->rtr_type;
|
|
if (!iwarp_info->peer2peer)
|
|
ep->rtr_type = MPA_RTR_TYPE_NONE;
|
|
|
|
if ((ep->rtr_type & MPA_RTR_TYPE_ZERO_READ) && (ep->cm_info.ord == 0))
|
|
ep->cm_info.ord = 1;
|
|
|
|
ep->mpa_rev = iwarp_info->mpa_rev;
|
|
|
|
qed_iwarp_mpa_v2_set_private(p_hwfn, ep, &mpa_data_size);
|
|
|
|
ep->cm_info.private_data = ep->ep_buffer_virt->out_pdata;
|
|
ep->cm_info.private_data_len = iparams->cm_info.private_data_len +
|
|
mpa_data_size;
|
|
|
|
memcpy((u8 *)ep->ep_buffer_virt->out_pdata + mpa_data_size,
|
|
iparams->cm_info.private_data,
|
|
iparams->cm_info.private_data_len);
|
|
|
|
ep->mss = iparams->mss;
|
|
ep->mss = min_t(u16, QED_IWARP_MAX_FW_MSS, ep->mss);
|
|
|
|
ep->event_cb = iparams->event_cb;
|
|
ep->cb_context = iparams->cb_context;
|
|
ep->connect_mode = TCP_CONNECT_ACTIVE;
|
|
|
|
oparams->ep_context = ep;
|
|
|
|
rc = qed_iwarp_tcp_offload(p_hwfn, ep);
|
|
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x) EP(0x%x) rc = %d\n",
|
|
iparams->qp->icid, ep->tcp_cid, rc);
|
|
|
|
if (rc) {
|
|
qed_iwarp_destroy_ep(p_hwfn, ep, true);
|
|
goto err;
|
|
}
|
|
|
|
return rc;
|
|
err:
|
|
qed_iwarp_cid_cleaned(p_hwfn, cid);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static struct qed_iwarp_ep *qed_iwarp_get_free_ep(struct qed_hwfn *p_hwfn)
|
|
{
|
|
struct qed_iwarp_ep *ep = NULL;
|
|
int rc;
|
|
|
|
spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
|
|
if (list_empty(&p_hwfn->p_rdma_info->iwarp.ep_free_list)) {
|
|
DP_ERR(p_hwfn, "Ep list is empty\n");
|
|
goto out;
|
|
}
|
|
|
|
ep = list_first_entry(&p_hwfn->p_rdma_info->iwarp.ep_free_list,
|
|
struct qed_iwarp_ep, list_entry);
|
|
|
|
/* in some cases we could have failed allocating a tcp cid when added
|
|
* from accept / failure... retry now..this is not the common case.
|
|
*/
|
|
if (ep->tcp_cid == QED_IWARP_INVALID_TCP_CID) {
|
|
rc = qed_iwarp_alloc_tcp_cid(p_hwfn, &ep->tcp_cid);
|
|
|
|
/* if we fail we could look for another entry with a valid
|
|
* tcp_cid, but since we don't expect to reach this anyway
|
|
* it's not worth the handling
|
|
*/
|
|
if (rc) {
|
|
ep->tcp_cid = QED_IWARP_INVALID_TCP_CID;
|
|
ep = NULL;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
list_del(&ep->list_entry);
|
|
|
|
out:
|
|
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
return ep;
|
|
}
|
|
|
|
#define QED_IWARP_MAX_CID_CLEAN_TIME 100
|
|
#define QED_IWARP_MAX_NO_PROGRESS_CNT 5
|
|
|
|
/* This function waits for all the bits of a bmap to be cleared, as long as
|
|
* there is progress ( i.e. the number of bits left to be cleared decreases )
|
|
* the function continues.
|
|
*/
|
|
static int
|
|
qed_iwarp_wait_cid_map_cleared(struct qed_hwfn *p_hwfn, struct qed_bmap *bmap)
|
|
{
|
|
int prev_weight = 0;
|
|
int wait_count = 0;
|
|
int weight = 0;
|
|
|
|
weight = bitmap_weight(bmap->bitmap, bmap->max_count);
|
|
prev_weight = weight;
|
|
|
|
while (weight) {
|
|
msleep(QED_IWARP_MAX_CID_CLEAN_TIME);
|
|
|
|
weight = bitmap_weight(bmap->bitmap, bmap->max_count);
|
|
|
|
if (prev_weight == weight) {
|
|
wait_count++;
|
|
} else {
|
|
prev_weight = weight;
|
|
wait_count = 0;
|
|
}
|
|
|
|
if (wait_count > QED_IWARP_MAX_NO_PROGRESS_CNT) {
|
|
DP_NOTICE(p_hwfn,
|
|
"%s bitmap wait timed out (%d cids pending)\n",
|
|
bmap->name, weight);
|
|
return -EBUSY;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int qed_iwarp_wait_for_all_cids(struct qed_hwfn *p_hwfn)
|
|
{
|
|
int rc;
|
|
int i;
|
|
|
|
rc = qed_iwarp_wait_cid_map_cleared(p_hwfn,
|
|
&p_hwfn->p_rdma_info->tcp_cid_map);
|
|
if (rc)
|
|
return rc;
|
|
|
|
/* Now free the tcp cids from the main cid map */
|
|
for (i = 0; i < QED_IWARP_PREALLOC_CNT; i++)
|
|
qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, i);
|
|
|
|
/* Now wait for all cids to be completed */
|
|
return qed_iwarp_wait_cid_map_cleared(p_hwfn,
|
|
&p_hwfn->p_rdma_info->cid_map);
|
|
}
|
|
|
|
static void qed_iwarp_free_prealloc_ep(struct qed_hwfn *p_hwfn)
|
|
{
|
|
struct qed_iwarp_ep *ep;
|
|
|
|
while (!list_empty(&p_hwfn->p_rdma_info->iwarp.ep_free_list)) {
|
|
spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
|
|
ep = list_first_entry(&p_hwfn->p_rdma_info->iwarp.ep_free_list,
|
|
struct qed_iwarp_ep, list_entry);
|
|
|
|
if (!ep) {
|
|
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
break;
|
|
}
|
|
list_del(&ep->list_entry);
|
|
|
|
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
|
|
if (ep->tcp_cid != QED_IWARP_INVALID_TCP_CID)
|
|
qed_iwarp_cid_cleaned(p_hwfn, ep->tcp_cid);
|
|
|
|
qed_iwarp_destroy_ep(p_hwfn, ep, false);
|
|
}
|
|
}
|
|
|
|
static int qed_iwarp_prealloc_ep(struct qed_hwfn *p_hwfn, bool init)
|
|
{
|
|
struct qed_iwarp_ep *ep;
|
|
int rc = 0;
|
|
int count;
|
|
u32 cid;
|
|
int i;
|
|
|
|
count = init ? QED_IWARP_PREALLOC_CNT : 1;
|
|
for (i = 0; i < count; i++) {
|
|
rc = qed_iwarp_create_ep(p_hwfn, &ep);
|
|
if (rc)
|
|
return rc;
|
|
|
|
/* During initialization we allocate from the main pool,
|
|
* afterwards we allocate only from the tcp_cid.
|
|
*/
|
|
if (init) {
|
|
rc = qed_iwarp_alloc_cid(p_hwfn, &cid);
|
|
if (rc)
|
|
goto err;
|
|
qed_iwarp_set_tcp_cid(p_hwfn, cid);
|
|
} else {
|
|
/* We don't care about the return code, it's ok if
|
|
* tcp_cid remains invalid...in this case we'll
|
|
* defer allocation
|
|
*/
|
|
qed_iwarp_alloc_tcp_cid(p_hwfn, &cid);
|
|
}
|
|
|
|
ep->tcp_cid = cid;
|
|
|
|
spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
list_add_tail(&ep->list_entry,
|
|
&p_hwfn->p_rdma_info->iwarp.ep_free_list);
|
|
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
}
|
|
|
|
return rc;
|
|
|
|
err:
|
|
qed_iwarp_destroy_ep(p_hwfn, ep, false);
|
|
|
|
return rc;
|
|
}
|
|
|
|
int qed_iwarp_alloc(struct qed_hwfn *p_hwfn)
|
|
{
|
|
int rc;
|
|
|
|
/* Allocate bitmap for tcp cid. These are used by passive side
|
|
* to ensure it can allocate a tcp cid during dpc that was
|
|
* pre-acquired and doesn't require dynamic allocation of ilt
|
|
*/
|
|
rc = qed_rdma_bmap_alloc(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map,
|
|
QED_IWARP_PREALLOC_CNT, "TCP_CID");
|
|
if (rc) {
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"Failed to allocate tcp cid, rc = %d\n", rc);
|
|
return rc;
|
|
}
|
|
|
|
INIT_LIST_HEAD(&p_hwfn->p_rdma_info->iwarp.ep_free_list);
|
|
spin_lock_init(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
|
|
rc = qed_iwarp_prealloc_ep(p_hwfn, true);
|
|
if (rc)
|
|
return rc;
|
|
|
|
return qed_ooo_alloc(p_hwfn);
|
|
}
|
|
|
|
void qed_iwarp_resc_free(struct qed_hwfn *p_hwfn)
|
|
{
|
|
struct qed_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp;
|
|
|
|
qed_ooo_free(p_hwfn);
|
|
qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map, 1);
|
|
kfree(iwarp_info->mpa_bufs);
|
|
kfree(iwarp_info->partial_fpdus);
|
|
kfree(iwarp_info->mpa_intermediate_buf);
|
|
}
|
|
|
|
int qed_iwarp_accept(void *rdma_cxt, struct qed_iwarp_accept_in *iparams)
|
|
{
|
|
struct qed_hwfn *p_hwfn = rdma_cxt;
|
|
struct qed_iwarp_ep *ep;
|
|
u8 mpa_data_size = 0;
|
|
int rc;
|
|
|
|
ep = iparams->ep_context;
|
|
if (!ep) {
|
|
DP_ERR(p_hwfn, "Ep Context receive in accept is NULL\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x) EP(0x%x)\n",
|
|
iparams->qp->icid, ep->tcp_cid);
|
|
|
|
if ((iparams->ord > QED_IWARP_ORD_DEFAULT) ||
|
|
(iparams->ird > QED_IWARP_IRD_DEFAULT)) {
|
|
DP_VERBOSE(p_hwfn,
|
|
QED_MSG_RDMA,
|
|
"QP(0x%x) EP(0x%x) ERROR: Invalid ord(0x%x)/ird(0x%x)\n",
|
|
iparams->qp->icid,
|
|
ep->tcp_cid, iparams->ord, iparams->ord);
|
|
return -EINVAL;
|
|
}
|
|
|
|
qed_iwarp_prealloc_ep(p_hwfn, false);
|
|
|
|
ep->cb_context = iparams->cb_context;
|
|
ep->qp = iparams->qp;
|
|
ep->qp->ep = ep;
|
|
|
|
if (ep->mpa_rev == MPA_NEGOTIATION_TYPE_ENHANCED) {
|
|
/* Negotiate ord/ird: if upperlayer requested ord larger than
|
|
* ird advertised by remote, we need to decrease our ord
|
|
*/
|
|
if (iparams->ord > ep->cm_info.ird)
|
|
iparams->ord = ep->cm_info.ird;
|
|
|
|
if ((ep->rtr_type & MPA_RTR_TYPE_ZERO_READ) &&
|
|
(iparams->ird == 0))
|
|
iparams->ird = 1;
|
|
}
|
|
|
|
/* Update cm_info ord/ird to be negotiated values */
|
|
ep->cm_info.ord = iparams->ord;
|
|
ep->cm_info.ird = iparams->ird;
|
|
|
|
qed_iwarp_mpa_v2_set_private(p_hwfn, ep, &mpa_data_size);
|
|
|
|
ep->cm_info.private_data = ep->ep_buffer_virt->out_pdata;
|
|
ep->cm_info.private_data_len = iparams->private_data_len +
|
|
mpa_data_size;
|
|
|
|
memcpy((u8 *)ep->ep_buffer_virt->out_pdata + mpa_data_size,
|
|
iparams->private_data, iparams->private_data_len);
|
|
|
|
rc = qed_iwarp_mpa_offload(p_hwfn, ep);
|
|
if (rc)
|
|
qed_iwarp_modify_qp(p_hwfn,
|
|
iparams->qp, QED_IWARP_QP_STATE_ERROR, 1);
|
|
|
|
return rc;
|
|
}
|
|
|
|
int qed_iwarp_reject(void *rdma_cxt, struct qed_iwarp_reject_in *iparams)
|
|
{
|
|
struct qed_hwfn *p_hwfn = rdma_cxt;
|
|
struct qed_iwarp_ep *ep;
|
|
u8 mpa_data_size = 0;
|
|
|
|
ep = iparams->ep_context;
|
|
if (!ep) {
|
|
DP_ERR(p_hwfn, "Ep Context receive in reject is NULL\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "EP(0x%x)\n", ep->tcp_cid);
|
|
|
|
ep->cb_context = iparams->cb_context;
|
|
ep->qp = NULL;
|
|
|
|
qed_iwarp_mpa_v2_set_private(p_hwfn, ep, &mpa_data_size);
|
|
|
|
ep->cm_info.private_data = ep->ep_buffer_virt->out_pdata;
|
|
ep->cm_info.private_data_len = iparams->private_data_len +
|
|
mpa_data_size;
|
|
|
|
memcpy((u8 *)ep->ep_buffer_virt->out_pdata + mpa_data_size,
|
|
iparams->private_data, iparams->private_data_len);
|
|
|
|
return qed_iwarp_mpa_offload(p_hwfn, ep);
|
|
}
|
|
|
|
static void
|
|
qed_iwarp_print_cm_info(struct qed_hwfn *p_hwfn,
|
|
struct qed_iwarp_cm_info *cm_info)
|
|
{
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "ip_version = %d\n",
|
|
cm_info->ip_version);
|
|
|
|
if (cm_info->ip_version == QED_TCP_IPV4)
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"remote_ip %pI4h:%x, local_ip %pI4h:%x vlan=%x\n",
|
|
cm_info->remote_ip, cm_info->remote_port,
|
|
cm_info->local_ip, cm_info->local_port,
|
|
cm_info->vlan);
|
|
else
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"remote_ip %pI6:%x, local_ip %pI6:%x vlan=%x\n",
|
|
cm_info->remote_ip, cm_info->remote_port,
|
|
cm_info->local_ip, cm_info->local_port,
|
|
cm_info->vlan);
|
|
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"private_data_len = %x ord = %d, ird = %d\n",
|
|
cm_info->private_data_len, cm_info->ord, cm_info->ird);
|
|
}
|
|
|
|
static int
|
|
qed_iwarp_ll2_post_rx(struct qed_hwfn *p_hwfn,
|
|
struct qed_iwarp_ll2_buff *buf, u8 handle)
|
|
{
|
|
int rc;
|
|
|
|
rc = qed_ll2_post_rx_buffer(p_hwfn, handle, buf->data_phys_addr,
|
|
(u16)buf->buff_size, buf, 1);
|
|
if (rc) {
|
|
DP_NOTICE(p_hwfn,
|
|
"Failed to repost rx buffer to ll2 rc = %d, handle=%d\n",
|
|
rc, handle);
|
|
dma_free_coherent(&p_hwfn->cdev->pdev->dev, buf->buff_size,
|
|
buf->data, buf->data_phys_addr);
|
|
kfree(buf);
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static bool
|
|
qed_iwarp_ep_exists(struct qed_hwfn *p_hwfn, struct qed_iwarp_cm_info *cm_info)
|
|
{
|
|
struct qed_iwarp_ep *ep = NULL;
|
|
bool found = false;
|
|
|
|
list_for_each_entry(ep,
|
|
&p_hwfn->p_rdma_info->iwarp.ep_list,
|
|
list_entry) {
|
|
if ((ep->cm_info.local_port == cm_info->local_port) &&
|
|
(ep->cm_info.remote_port == cm_info->remote_port) &&
|
|
(ep->cm_info.vlan == cm_info->vlan) &&
|
|
!memcmp(&ep->cm_info.local_ip, cm_info->local_ip,
|
|
sizeof(cm_info->local_ip)) &&
|
|
!memcmp(&ep->cm_info.remote_ip, cm_info->remote_ip,
|
|
sizeof(cm_info->remote_ip))) {
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (found) {
|
|
DP_NOTICE(p_hwfn,
|
|
"SYN received on active connection - dropping\n");
|
|
qed_iwarp_print_cm_info(p_hwfn, cm_info);
|
|
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static struct qed_iwarp_listener *
|
|
qed_iwarp_get_listener(struct qed_hwfn *p_hwfn,
|
|
struct qed_iwarp_cm_info *cm_info)
|
|
{
|
|
struct qed_iwarp_listener *listener = NULL;
|
|
static const u32 ip_zero[4] = { 0, 0, 0, 0 };
|
|
bool found = false;
|
|
|
|
qed_iwarp_print_cm_info(p_hwfn, cm_info);
|
|
|
|
list_for_each_entry(listener,
|
|
&p_hwfn->p_rdma_info->iwarp.listen_list,
|
|
list_entry) {
|
|
if (listener->port == cm_info->local_port) {
|
|
if (!memcmp(listener->ip_addr,
|
|
ip_zero, sizeof(ip_zero))) {
|
|
found = true;
|
|
break;
|
|
}
|
|
|
|
if (!memcmp(listener->ip_addr,
|
|
cm_info->local_ip,
|
|
sizeof(cm_info->local_ip)) &&
|
|
(listener->vlan == cm_info->vlan)) {
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (found) {
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "listener found = %p\n",
|
|
listener);
|
|
return listener;
|
|
}
|
|
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "listener not found\n");
|
|
return NULL;
|
|
}
|
|
|
|
static int
|
|
qed_iwarp_parse_rx_pkt(struct qed_hwfn *p_hwfn,
|
|
struct qed_iwarp_cm_info *cm_info,
|
|
void *buf,
|
|
u8 *remote_mac_addr,
|
|
u8 *local_mac_addr,
|
|
int *payload_len, int *tcp_start_offset)
|
|
{
|
|
struct vlan_ethhdr *vethh;
|
|
bool vlan_valid = false;
|
|
struct ipv6hdr *ip6h;
|
|
struct ethhdr *ethh;
|
|
struct tcphdr *tcph;
|
|
struct iphdr *iph;
|
|
int eth_hlen;
|
|
int ip_hlen;
|
|
int eth_type;
|
|
int i;
|
|
|
|
ethh = buf;
|
|
eth_type = ntohs(ethh->h_proto);
|
|
if (eth_type == ETH_P_8021Q) {
|
|
vlan_valid = true;
|
|
vethh = (struct vlan_ethhdr *)ethh;
|
|
cm_info->vlan = ntohs(vethh->h_vlan_TCI) & VLAN_VID_MASK;
|
|
eth_type = ntohs(vethh->h_vlan_encapsulated_proto);
|
|
}
|
|
|
|
eth_hlen = ETH_HLEN + (vlan_valid ? sizeof(u32) : 0);
|
|
|
|
ether_addr_copy(remote_mac_addr, ethh->h_source);
|
|
ether_addr_copy(local_mac_addr, ethh->h_dest);
|
|
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "eth_type =%d source mac: %pM\n",
|
|
eth_type, ethh->h_source);
|
|
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "eth_hlen=%d destination mac: %pM\n",
|
|
eth_hlen, ethh->h_dest);
|
|
|
|
iph = (struct iphdr *)((u8 *)(ethh) + eth_hlen);
|
|
|
|
if (eth_type == ETH_P_IP) {
|
|
if (iph->protocol != IPPROTO_TCP) {
|
|
DP_NOTICE(p_hwfn,
|
|
"Unexpected ip protocol on ll2 %x\n",
|
|
iph->protocol);
|
|
return -EINVAL;
|
|
}
|
|
|
|
cm_info->local_ip[0] = ntohl(iph->daddr);
|
|
cm_info->remote_ip[0] = ntohl(iph->saddr);
|
|
cm_info->ip_version = QED_TCP_IPV4;
|
|
|
|
ip_hlen = (iph->ihl) * sizeof(u32);
|
|
*payload_len = ntohs(iph->tot_len) - ip_hlen;
|
|
} else if (eth_type == ETH_P_IPV6) {
|
|
ip6h = (struct ipv6hdr *)iph;
|
|
|
|
if (ip6h->nexthdr != IPPROTO_TCP) {
|
|
DP_NOTICE(p_hwfn,
|
|
"Unexpected ip protocol on ll2 %x\n",
|
|
iph->protocol);
|
|
return -EINVAL;
|
|
}
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
cm_info->local_ip[i] =
|
|
ntohl(ip6h->daddr.in6_u.u6_addr32[i]);
|
|
cm_info->remote_ip[i] =
|
|
ntohl(ip6h->saddr.in6_u.u6_addr32[i]);
|
|
}
|
|
cm_info->ip_version = QED_TCP_IPV6;
|
|
|
|
ip_hlen = sizeof(*ip6h);
|
|
*payload_len = ntohs(ip6h->payload_len);
|
|
} else {
|
|
DP_NOTICE(p_hwfn, "Unexpected ethertype on ll2 %x\n", eth_type);
|
|
return -EINVAL;
|
|
}
|
|
|
|
tcph = (struct tcphdr *)((u8 *)iph + ip_hlen);
|
|
|
|
if (!tcph->syn) {
|
|
DP_NOTICE(p_hwfn,
|
|
"Only SYN type packet expected on this ll2 conn, iph->ihl=%d source=%d dest=%d\n",
|
|
iph->ihl, tcph->source, tcph->dest);
|
|
return -EINVAL;
|
|
}
|
|
|
|
cm_info->local_port = ntohs(tcph->dest);
|
|
cm_info->remote_port = ntohs(tcph->source);
|
|
|
|
qed_iwarp_print_cm_info(p_hwfn, cm_info);
|
|
|
|
*tcp_start_offset = eth_hlen + ip_hlen;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct qed_iwarp_fpdu *qed_iwarp_get_curr_fpdu(struct qed_hwfn *p_hwfn,
|
|
u16 cid)
|
|
{
|
|
struct qed_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp;
|
|
struct qed_iwarp_fpdu *partial_fpdu;
|
|
u32 idx;
|
|
|
|
idx = cid - qed_cxt_get_proto_cid_start(p_hwfn, PROTOCOLID_IWARP);
|
|
if (idx >= iwarp_info->max_num_partial_fpdus) {
|
|
DP_ERR(p_hwfn, "Invalid cid %x max_num_partial_fpdus=%x\n", cid,
|
|
iwarp_info->max_num_partial_fpdus);
|
|
return NULL;
|
|
}
|
|
|
|
partial_fpdu = &iwarp_info->partial_fpdus[idx];
|
|
|
|
return partial_fpdu;
|
|
}
|
|
|
|
enum qed_iwarp_mpa_pkt_type {
|
|
QED_IWARP_MPA_PKT_PACKED,
|
|
QED_IWARP_MPA_PKT_PARTIAL,
|
|
QED_IWARP_MPA_PKT_UNALIGNED
|
|
};
|
|
|
|
#define QED_IWARP_INVALID_FPDU_LENGTH 0xffff
|
|
#define QED_IWARP_MPA_FPDU_LENGTH_SIZE (2)
|
|
#define QED_IWARP_MPA_CRC32_DIGEST_SIZE (4)
|
|
|
|
/* Pad to multiple of 4 */
|
|
#define QED_IWARP_PDU_DATA_LEN_WITH_PAD(data_len) ALIGN(data_len, 4)
|
|
#define QED_IWARP_FPDU_LEN_WITH_PAD(_mpa_len) \
|
|
(QED_IWARP_PDU_DATA_LEN_WITH_PAD((_mpa_len) + \
|
|
QED_IWARP_MPA_FPDU_LENGTH_SIZE) + \
|
|
QED_IWARP_MPA_CRC32_DIGEST_SIZE)
|
|
|
|
/* fpdu can be fragmented over maximum 3 bds: header, partial mpa, unaligned */
|
|
#define QED_IWARP_MAX_BDS_PER_FPDU 3
|
|
|
|
static const char * const pkt_type_str[] = {
|
|
"QED_IWARP_MPA_PKT_PACKED",
|
|
"QED_IWARP_MPA_PKT_PARTIAL",
|
|
"QED_IWARP_MPA_PKT_UNALIGNED"
|
|
};
|
|
|
|
static int
|
|
qed_iwarp_recycle_pkt(struct qed_hwfn *p_hwfn,
|
|
struct qed_iwarp_fpdu *fpdu,
|
|
struct qed_iwarp_ll2_buff *buf);
|
|
|
|
static enum qed_iwarp_mpa_pkt_type
|
|
qed_iwarp_mpa_classify(struct qed_hwfn *p_hwfn,
|
|
struct qed_iwarp_fpdu *fpdu,
|
|
u16 tcp_payload_len, u8 *mpa_data)
|
|
{
|
|
enum qed_iwarp_mpa_pkt_type pkt_type;
|
|
u16 mpa_len;
|
|
|
|
if (fpdu->incomplete_bytes) {
|
|
pkt_type = QED_IWARP_MPA_PKT_UNALIGNED;
|
|
goto out;
|
|
}
|
|
|
|
/* special case of one byte remaining...
|
|
* lower byte will be read next packet
|
|
*/
|
|
if (tcp_payload_len == 1) {
|
|
fpdu->fpdu_length = *mpa_data << BITS_PER_BYTE;
|
|
pkt_type = QED_IWARP_MPA_PKT_PARTIAL;
|
|
goto out;
|
|
}
|
|
|
|
mpa_len = ntohs(*((u16 *)(mpa_data)));
|
|
fpdu->fpdu_length = QED_IWARP_FPDU_LEN_WITH_PAD(mpa_len);
|
|
|
|
if (fpdu->fpdu_length <= tcp_payload_len)
|
|
pkt_type = QED_IWARP_MPA_PKT_PACKED;
|
|
else
|
|
pkt_type = QED_IWARP_MPA_PKT_PARTIAL;
|
|
|
|
out:
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"MPA_ALIGN: %s: fpdu_length=0x%x tcp_payload_len:0x%x\n",
|
|
pkt_type_str[pkt_type], fpdu->fpdu_length, tcp_payload_len);
|
|
|
|
return pkt_type;
|
|
}
|
|
|
|
static void
|
|
qed_iwarp_init_fpdu(struct qed_iwarp_ll2_buff *buf,
|
|
struct qed_iwarp_fpdu *fpdu,
|
|
struct unaligned_opaque_data *pkt_data,
|
|
u16 tcp_payload_size, u8 placement_offset)
|
|
{
|
|
fpdu->mpa_buf = buf;
|
|
fpdu->pkt_hdr = buf->data_phys_addr + placement_offset;
|
|
fpdu->pkt_hdr_size = pkt_data->tcp_payload_offset;
|
|
fpdu->mpa_frag = buf->data_phys_addr + pkt_data->first_mpa_offset;
|
|
fpdu->mpa_frag_virt = (u8 *)(buf->data) + pkt_data->first_mpa_offset;
|
|
|
|
if (tcp_payload_size == 1)
|
|
fpdu->incomplete_bytes = QED_IWARP_INVALID_FPDU_LENGTH;
|
|
else if (tcp_payload_size < fpdu->fpdu_length)
|
|
fpdu->incomplete_bytes = fpdu->fpdu_length - tcp_payload_size;
|
|
else
|
|
fpdu->incomplete_bytes = 0; /* complete fpdu */
|
|
|
|
fpdu->mpa_frag_len = fpdu->fpdu_length - fpdu->incomplete_bytes;
|
|
}
|
|
|
|
static int
|
|
qed_iwarp_cp_pkt(struct qed_hwfn *p_hwfn,
|
|
struct qed_iwarp_fpdu *fpdu,
|
|
struct unaligned_opaque_data *pkt_data,
|
|
struct qed_iwarp_ll2_buff *buf, u16 tcp_payload_size)
|
|
{
|
|
u8 *tmp_buf = p_hwfn->p_rdma_info->iwarp.mpa_intermediate_buf;
|
|
int rc;
|
|
|
|
/* need to copy the data from the partial packet stored in fpdu
|
|
* to the new buf, for this we also need to move the data currently
|
|
* placed on the buf. The assumption is that the buffer is big enough
|
|
* since fpdu_length <= mss, we use an intermediate buffer since
|
|
* we may need to copy the new data to an overlapping location
|
|
*/
|
|
if ((fpdu->mpa_frag_len + tcp_payload_size) > (u16)buf->buff_size) {
|
|
DP_ERR(p_hwfn,
|
|
"MPA ALIGN: Unexpected: buffer is not large enough for split fpdu buff_size = %d mpa_frag_len = %d, tcp_payload_size = %d, incomplete_bytes = %d\n",
|
|
buf->buff_size, fpdu->mpa_frag_len,
|
|
tcp_payload_size, fpdu->incomplete_bytes);
|
|
return -EINVAL;
|
|
}
|
|
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"MPA ALIGN Copying fpdu: [%p, %d] [%p, %d]\n",
|
|
fpdu->mpa_frag_virt, fpdu->mpa_frag_len,
|
|
(u8 *)(buf->data) + pkt_data->first_mpa_offset,
|
|
tcp_payload_size);
|
|
|
|
memcpy(tmp_buf, fpdu->mpa_frag_virt, fpdu->mpa_frag_len);
|
|
memcpy(tmp_buf + fpdu->mpa_frag_len,
|
|
(u8 *)(buf->data) + pkt_data->first_mpa_offset,
|
|
tcp_payload_size);
|
|
|
|
rc = qed_iwarp_recycle_pkt(p_hwfn, fpdu, fpdu->mpa_buf);
|
|
if (rc)
|
|
return rc;
|
|
|
|
/* If we managed to post the buffer copy the data to the new buffer
|
|
* o/w this will occur in the next round...
|
|
*/
|
|
memcpy((u8 *)(buf->data), tmp_buf,
|
|
fpdu->mpa_frag_len + tcp_payload_size);
|
|
|
|
fpdu->mpa_buf = buf;
|
|
/* fpdu->pkt_hdr remains as is */
|
|
/* fpdu->mpa_frag is overridden with new buf */
|
|
fpdu->mpa_frag = buf->data_phys_addr;
|
|
fpdu->mpa_frag_virt = buf->data;
|
|
fpdu->mpa_frag_len += tcp_payload_size;
|
|
|
|
fpdu->incomplete_bytes -= tcp_payload_size;
|
|
|
|
DP_VERBOSE(p_hwfn,
|
|
QED_MSG_RDMA,
|
|
"MPA ALIGN: split fpdu buff_size = %d mpa_frag_len = %d, tcp_payload_size = %d, incomplete_bytes = %d\n",
|
|
buf->buff_size, fpdu->mpa_frag_len, tcp_payload_size,
|
|
fpdu->incomplete_bytes);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
qed_iwarp_update_fpdu_length(struct qed_hwfn *p_hwfn,
|
|
struct qed_iwarp_fpdu *fpdu, u8 *mpa_data)
|
|
{
|
|
u16 mpa_len;
|
|
|
|
/* Update incomplete packets if needed */
|
|
if (fpdu->incomplete_bytes == QED_IWARP_INVALID_FPDU_LENGTH) {
|
|
/* Missing lower byte is now available */
|
|
mpa_len = fpdu->fpdu_length | *mpa_data;
|
|
fpdu->fpdu_length = QED_IWARP_FPDU_LEN_WITH_PAD(mpa_len);
|
|
/* one byte of hdr */
|
|
fpdu->mpa_frag_len = 1;
|
|
fpdu->incomplete_bytes = fpdu->fpdu_length - 1;
|
|
DP_VERBOSE(p_hwfn,
|
|
QED_MSG_RDMA,
|
|
"MPA_ALIGN: Partial header mpa_len=%x fpdu_length=%x incomplete_bytes=%x\n",
|
|
mpa_len, fpdu->fpdu_length, fpdu->incomplete_bytes);
|
|
}
|
|
}
|
|
|
|
#define QED_IWARP_IS_RIGHT_EDGE(_curr_pkt) \
|
|
(GET_FIELD((_curr_pkt)->flags, \
|
|
UNALIGNED_OPAQUE_DATA_PKT_REACHED_WIN_RIGHT_EDGE))
|
|
|
|
/* This function is used to recycle a buffer using the ll2 drop option. It
|
|
* uses the mechanism to ensure that all buffers posted to tx before this one
|
|
* were completed. The buffer sent here will be sent as a cookie in the tx
|
|
* completion function and can then be reposted to rx chain when done. The flow
|
|
* that requires this is the flow where a FPDU splits over more than 3 tcp
|
|
* segments. In this case the driver needs to re-post a rx buffer instead of
|
|
* the one received, but driver can't simply repost a buffer it copied from
|
|
* as there is a case where the buffer was originally a packed FPDU, and is
|
|
* partially posted to FW. Driver needs to ensure FW is done with it.
|
|
*/
|
|
static int
|
|
qed_iwarp_recycle_pkt(struct qed_hwfn *p_hwfn,
|
|
struct qed_iwarp_fpdu *fpdu,
|
|
struct qed_iwarp_ll2_buff *buf)
|
|
{
|
|
struct qed_ll2_tx_pkt_info tx_pkt;
|
|
u8 ll2_handle;
|
|
int rc;
|
|
|
|
memset(&tx_pkt, 0, sizeof(tx_pkt));
|
|
tx_pkt.num_of_bds = 1;
|
|
tx_pkt.tx_dest = QED_LL2_TX_DEST_DROP;
|
|
tx_pkt.l4_hdr_offset_w = fpdu->pkt_hdr_size >> 2;
|
|
tx_pkt.first_frag = fpdu->pkt_hdr;
|
|
tx_pkt.first_frag_len = fpdu->pkt_hdr_size;
|
|
buf->piggy_buf = NULL;
|
|
tx_pkt.cookie = buf;
|
|
|
|
ll2_handle = p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle;
|
|
|
|
rc = qed_ll2_prepare_tx_packet(p_hwfn, ll2_handle, &tx_pkt, true);
|
|
if (rc)
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"Can't drop packet rc=%d\n", rc);
|
|
|
|
DP_VERBOSE(p_hwfn,
|
|
QED_MSG_RDMA,
|
|
"MPA_ALIGN: send drop tx packet [%lx, 0x%x], buf=%p, rc=%d\n",
|
|
(unsigned long int)tx_pkt.first_frag,
|
|
tx_pkt.first_frag_len, buf, rc);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int
|
|
qed_iwarp_win_right_edge(struct qed_hwfn *p_hwfn, struct qed_iwarp_fpdu *fpdu)
|
|
{
|
|
struct qed_ll2_tx_pkt_info tx_pkt;
|
|
u8 ll2_handle;
|
|
int rc;
|
|
|
|
memset(&tx_pkt, 0, sizeof(tx_pkt));
|
|
tx_pkt.num_of_bds = 1;
|
|
tx_pkt.tx_dest = QED_LL2_TX_DEST_LB;
|
|
tx_pkt.l4_hdr_offset_w = fpdu->pkt_hdr_size >> 2;
|
|
|
|
tx_pkt.first_frag = fpdu->pkt_hdr;
|
|
tx_pkt.first_frag_len = fpdu->pkt_hdr_size;
|
|
tx_pkt.enable_ip_cksum = true;
|
|
tx_pkt.enable_l4_cksum = true;
|
|
tx_pkt.calc_ip_len = true;
|
|
/* vlan overload with enum iwarp_ll2_tx_queues */
|
|
tx_pkt.vlan = IWARP_LL2_ALIGNED_RIGHT_TRIMMED_TX_QUEUE;
|
|
|
|
ll2_handle = p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle;
|
|
|
|
rc = qed_ll2_prepare_tx_packet(p_hwfn, ll2_handle, &tx_pkt, true);
|
|
if (rc)
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"Can't send right edge rc=%d\n", rc);
|
|
DP_VERBOSE(p_hwfn,
|
|
QED_MSG_RDMA,
|
|
"MPA_ALIGN: Sent right edge FPDU num_bds=%d [%lx, 0x%x], rc=%d\n",
|
|
tx_pkt.num_of_bds,
|
|
(unsigned long int)tx_pkt.first_frag,
|
|
tx_pkt.first_frag_len, rc);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int
|
|
qed_iwarp_send_fpdu(struct qed_hwfn *p_hwfn,
|
|
struct qed_iwarp_fpdu *fpdu,
|
|
struct unaligned_opaque_data *curr_pkt,
|
|
struct qed_iwarp_ll2_buff *buf,
|
|
u16 tcp_payload_size, enum qed_iwarp_mpa_pkt_type pkt_type)
|
|
{
|
|
struct qed_ll2_tx_pkt_info tx_pkt;
|
|
u8 ll2_handle;
|
|
int rc;
|
|
|
|
memset(&tx_pkt, 0, sizeof(tx_pkt));
|
|
|
|
/* An unaligned packet means it's split over two tcp segments. So the
|
|
* complete packet requires 3 bds, one for the header, one for the
|
|
* part of the fpdu of the first tcp segment, and the last fragment
|
|
* will point to the remainder of the fpdu. A packed pdu, requires only
|
|
* two bds, one for the header and one for the data.
|
|
*/
|
|
tx_pkt.num_of_bds = (pkt_type == QED_IWARP_MPA_PKT_UNALIGNED) ? 3 : 2;
|
|
tx_pkt.tx_dest = QED_LL2_TX_DEST_LB;
|
|
tx_pkt.l4_hdr_offset_w = fpdu->pkt_hdr_size >> 2; /* offset in words */
|
|
|
|
/* Send the mpa_buf only with the last fpdu (in case of packed) */
|
|
if (pkt_type == QED_IWARP_MPA_PKT_UNALIGNED ||
|
|
tcp_payload_size <= fpdu->fpdu_length)
|
|
tx_pkt.cookie = fpdu->mpa_buf;
|
|
|
|
tx_pkt.first_frag = fpdu->pkt_hdr;
|
|
tx_pkt.first_frag_len = fpdu->pkt_hdr_size;
|
|
tx_pkt.enable_ip_cksum = true;
|
|
tx_pkt.enable_l4_cksum = true;
|
|
tx_pkt.calc_ip_len = true;
|
|
/* vlan overload with enum iwarp_ll2_tx_queues */
|
|
tx_pkt.vlan = IWARP_LL2_ALIGNED_TX_QUEUE;
|
|
|
|
/* special case of unaligned packet and not packed, need to send
|
|
* both buffers as cookie to release.
|
|
*/
|
|
if (tcp_payload_size == fpdu->incomplete_bytes)
|
|
fpdu->mpa_buf->piggy_buf = buf;
|
|
|
|
ll2_handle = p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle;
|
|
|
|
/* Set first fragment to header */
|
|
rc = qed_ll2_prepare_tx_packet(p_hwfn, ll2_handle, &tx_pkt, true);
|
|
if (rc)
|
|
goto out;
|
|
|
|
/* Set second fragment to first part of packet */
|
|
rc = qed_ll2_set_fragment_of_tx_packet(p_hwfn, ll2_handle,
|
|
fpdu->mpa_frag,
|
|
fpdu->mpa_frag_len);
|
|
if (rc)
|
|
goto out;
|
|
|
|
if (!fpdu->incomplete_bytes)
|
|
goto out;
|
|
|
|
/* Set third fragment to second part of the packet */
|
|
rc = qed_ll2_set_fragment_of_tx_packet(p_hwfn,
|
|
ll2_handle,
|
|
buf->data_phys_addr +
|
|
curr_pkt->first_mpa_offset,
|
|
fpdu->incomplete_bytes);
|
|
out:
|
|
DP_VERBOSE(p_hwfn,
|
|
QED_MSG_RDMA,
|
|
"MPA_ALIGN: Sent FPDU num_bds=%d first_frag_len=%x, mpa_frag_len=0x%x, incomplete_bytes:0x%x rc=%d\n",
|
|
tx_pkt.num_of_bds,
|
|
tx_pkt.first_frag_len,
|
|
fpdu->mpa_frag_len,
|
|
fpdu->incomplete_bytes, rc);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void
|
|
qed_iwarp_mpa_get_data(struct qed_hwfn *p_hwfn,
|
|
struct unaligned_opaque_data *curr_pkt,
|
|
u32 opaque_data0, u32 opaque_data1)
|
|
{
|
|
u64 opaque_data;
|
|
|
|
opaque_data = HILO_64(opaque_data1, opaque_data0);
|
|
*curr_pkt = *((struct unaligned_opaque_data *)&opaque_data);
|
|
|
|
curr_pkt->first_mpa_offset = curr_pkt->tcp_payload_offset +
|
|
le16_to_cpu(curr_pkt->first_mpa_offset);
|
|
curr_pkt->cid = le32_to_cpu(curr_pkt->cid);
|
|
}
|
|
|
|
/* This function is called when an unaligned or incomplete MPA packet arrives
|
|
* driver needs to align the packet, perhaps using previous data and send
|
|
* it down to FW once it is aligned.
|
|
*/
|
|
static int
|
|
qed_iwarp_process_mpa_pkt(struct qed_hwfn *p_hwfn,
|
|
struct qed_iwarp_ll2_mpa_buf *mpa_buf)
|
|
{
|
|
struct unaligned_opaque_data *curr_pkt = &mpa_buf->data;
|
|
struct qed_iwarp_ll2_buff *buf = mpa_buf->ll2_buf;
|
|
enum qed_iwarp_mpa_pkt_type pkt_type;
|
|
struct qed_iwarp_fpdu *fpdu;
|
|
int rc = -EINVAL;
|
|
u8 *mpa_data;
|
|
|
|
fpdu = qed_iwarp_get_curr_fpdu(p_hwfn, curr_pkt->cid & 0xffff);
|
|
if (!fpdu) { /* something corrupt with cid, post rx back */
|
|
DP_ERR(p_hwfn, "Invalid cid, drop and post back to rx cid=%x\n",
|
|
curr_pkt->cid);
|
|
goto err;
|
|
}
|
|
|
|
do {
|
|
mpa_data = ((u8 *)(buf->data) + curr_pkt->first_mpa_offset);
|
|
|
|
pkt_type = qed_iwarp_mpa_classify(p_hwfn, fpdu,
|
|
mpa_buf->tcp_payload_len,
|
|
mpa_data);
|
|
|
|
switch (pkt_type) {
|
|
case QED_IWARP_MPA_PKT_PARTIAL:
|
|
qed_iwarp_init_fpdu(buf, fpdu,
|
|
curr_pkt,
|
|
mpa_buf->tcp_payload_len,
|
|
mpa_buf->placement_offset);
|
|
|
|
if (!QED_IWARP_IS_RIGHT_EDGE(curr_pkt)) {
|
|
mpa_buf->tcp_payload_len = 0;
|
|
break;
|
|
}
|
|
|
|
rc = qed_iwarp_win_right_edge(p_hwfn, fpdu);
|
|
|
|
if (rc) {
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"Can't send FPDU:reset rc=%d\n", rc);
|
|
memset(fpdu, 0, sizeof(*fpdu));
|
|
break;
|
|
}
|
|
|
|
mpa_buf->tcp_payload_len = 0;
|
|
break;
|
|
case QED_IWARP_MPA_PKT_PACKED:
|
|
qed_iwarp_init_fpdu(buf, fpdu,
|
|
curr_pkt,
|
|
mpa_buf->tcp_payload_len,
|
|
mpa_buf->placement_offset);
|
|
|
|
rc = qed_iwarp_send_fpdu(p_hwfn, fpdu, curr_pkt, buf,
|
|
mpa_buf->tcp_payload_len,
|
|
pkt_type);
|
|
if (rc) {
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"Can't send FPDU:reset rc=%d\n", rc);
|
|
memset(fpdu, 0, sizeof(*fpdu));
|
|
break;
|
|
}
|
|
|
|
mpa_buf->tcp_payload_len -= fpdu->fpdu_length;
|
|
curr_pkt->first_mpa_offset += fpdu->fpdu_length;
|
|
break;
|
|
case QED_IWARP_MPA_PKT_UNALIGNED:
|
|
qed_iwarp_update_fpdu_length(p_hwfn, fpdu, mpa_data);
|
|
if (mpa_buf->tcp_payload_len < fpdu->incomplete_bytes) {
|
|
/* special handling of fpdu split over more
|
|
* than 2 segments
|
|
*/
|
|
if (QED_IWARP_IS_RIGHT_EDGE(curr_pkt)) {
|
|
rc = qed_iwarp_win_right_edge(p_hwfn,
|
|
fpdu);
|
|
/* packet will be re-processed later */
|
|
if (rc)
|
|
return rc;
|
|
}
|
|
|
|
rc = qed_iwarp_cp_pkt(p_hwfn, fpdu, curr_pkt,
|
|
buf,
|
|
mpa_buf->tcp_payload_len);
|
|
if (rc) /* packet will be re-processed later */
|
|
return rc;
|
|
|
|
mpa_buf->tcp_payload_len = 0;
|
|
break;
|
|
}
|
|
|
|
rc = qed_iwarp_send_fpdu(p_hwfn, fpdu, curr_pkt, buf,
|
|
mpa_buf->tcp_payload_len,
|
|
pkt_type);
|
|
if (rc) {
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"Can't send FPDU:delay rc=%d\n", rc);
|
|
/* don't reset fpdu -> we need it for next
|
|
* classify
|
|
*/
|
|
break;
|
|
}
|
|
|
|
mpa_buf->tcp_payload_len -= fpdu->incomplete_bytes;
|
|
curr_pkt->first_mpa_offset += fpdu->incomplete_bytes;
|
|
/* The framed PDU was sent - no more incomplete bytes */
|
|
fpdu->incomplete_bytes = 0;
|
|
break;
|
|
}
|
|
} while (mpa_buf->tcp_payload_len && !rc);
|
|
|
|
return rc;
|
|
|
|
err:
|
|
qed_iwarp_ll2_post_rx(p_hwfn,
|
|
buf,
|
|
p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle);
|
|
return rc;
|
|
}
|
|
|
|
static void qed_iwarp_process_pending_pkts(struct qed_hwfn *p_hwfn)
|
|
{
|
|
struct qed_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp;
|
|
struct qed_iwarp_ll2_mpa_buf *mpa_buf = NULL;
|
|
int rc;
|
|
|
|
while (!list_empty(&iwarp_info->mpa_buf_pending_list)) {
|
|
mpa_buf = list_first_entry(&iwarp_info->mpa_buf_pending_list,
|
|
struct qed_iwarp_ll2_mpa_buf,
|
|
list_entry);
|
|
|
|
rc = qed_iwarp_process_mpa_pkt(p_hwfn, mpa_buf);
|
|
|
|
/* busy means break and continue processing later, don't
|
|
* remove the buf from the pending list.
|
|
*/
|
|
if (rc == -EBUSY)
|
|
break;
|
|
|
|
list_move_tail(&mpa_buf->list_entry,
|
|
&iwarp_info->mpa_buf_list);
|
|
|
|
if (rc) { /* different error, don't continue */
|
|
DP_NOTICE(p_hwfn, "process pkts failed rc=%d\n", rc);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
qed_iwarp_ll2_comp_mpa_pkt(void *cxt, struct qed_ll2_comp_rx_data *data)
|
|
{
|
|
struct qed_iwarp_ll2_mpa_buf *mpa_buf;
|
|
struct qed_iwarp_info *iwarp_info;
|
|
struct qed_hwfn *p_hwfn = cxt;
|
|
|
|
iwarp_info = &p_hwfn->p_rdma_info->iwarp;
|
|
mpa_buf = list_first_entry(&iwarp_info->mpa_buf_list,
|
|
struct qed_iwarp_ll2_mpa_buf, list_entry);
|
|
if (!mpa_buf) {
|
|
DP_ERR(p_hwfn, "No free mpa buf\n");
|
|
goto err;
|
|
}
|
|
|
|
list_del(&mpa_buf->list_entry);
|
|
qed_iwarp_mpa_get_data(p_hwfn, &mpa_buf->data,
|
|
data->opaque_data_0, data->opaque_data_1);
|
|
|
|
DP_VERBOSE(p_hwfn,
|
|
QED_MSG_RDMA,
|
|
"LL2 MPA CompRx payload_len:0x%x\tfirst_mpa_offset:0x%x\ttcp_payload_offset:0x%x\tflags:0x%x\tcid:0x%x\n",
|
|
data->length.packet_length, mpa_buf->data.first_mpa_offset,
|
|
mpa_buf->data.tcp_payload_offset, mpa_buf->data.flags,
|
|
mpa_buf->data.cid);
|
|
|
|
mpa_buf->ll2_buf = data->cookie;
|
|
mpa_buf->tcp_payload_len = data->length.packet_length -
|
|
mpa_buf->data.first_mpa_offset;
|
|
mpa_buf->data.first_mpa_offset += data->u.placement_offset;
|
|
mpa_buf->placement_offset = data->u.placement_offset;
|
|
|
|
list_add_tail(&mpa_buf->list_entry, &iwarp_info->mpa_buf_pending_list);
|
|
|
|
qed_iwarp_process_pending_pkts(p_hwfn);
|
|
return;
|
|
err:
|
|
qed_iwarp_ll2_post_rx(p_hwfn, data->cookie,
|
|
iwarp_info->ll2_mpa_handle);
|
|
}
|
|
|
|
static void
|
|
qed_iwarp_ll2_comp_syn_pkt(void *cxt, struct qed_ll2_comp_rx_data *data)
|
|
{
|
|
struct qed_iwarp_ll2_buff *buf = data->cookie;
|
|
struct qed_iwarp_listener *listener;
|
|
struct qed_ll2_tx_pkt_info tx_pkt;
|
|
struct qed_iwarp_cm_info cm_info;
|
|
struct qed_hwfn *p_hwfn = cxt;
|
|
u8 remote_mac_addr[ETH_ALEN];
|
|
u8 local_mac_addr[ETH_ALEN];
|
|
struct qed_iwarp_ep *ep;
|
|
int tcp_start_offset;
|
|
u8 ll2_syn_handle;
|
|
int payload_len;
|
|
u32 hdr_size;
|
|
int rc;
|
|
|
|
memset(&cm_info, 0, sizeof(cm_info));
|
|
ll2_syn_handle = p_hwfn->p_rdma_info->iwarp.ll2_syn_handle;
|
|
|
|
/* Check if packet was received with errors... */
|
|
if (data->err_flags) {
|
|
DP_NOTICE(p_hwfn, "Error received on SYN packet: 0x%x\n",
|
|
data->err_flags);
|
|
goto err;
|
|
}
|
|
|
|
if (GET_FIELD(data->parse_flags,
|
|
PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED) &&
|
|
GET_FIELD(data->parse_flags, PARSING_AND_ERR_FLAGS_L4CHKSMERROR)) {
|
|
DP_NOTICE(p_hwfn, "Syn packet received with checksum error\n");
|
|
goto err;
|
|
}
|
|
|
|
rc = qed_iwarp_parse_rx_pkt(p_hwfn, &cm_info, (u8 *)(buf->data) +
|
|
data->u.placement_offset, remote_mac_addr,
|
|
local_mac_addr, &payload_len,
|
|
&tcp_start_offset);
|
|
if (rc)
|
|
goto err;
|
|
|
|
/* Check if there is a listener for this 4-tuple+vlan */
|
|
listener = qed_iwarp_get_listener(p_hwfn, &cm_info);
|
|
if (!listener) {
|
|
DP_VERBOSE(p_hwfn,
|
|
QED_MSG_RDMA,
|
|
"SYN received on tuple not listened on parse_flags=%d packet len=%d\n",
|
|
data->parse_flags, data->length.packet_length);
|
|
|
|
memset(&tx_pkt, 0, sizeof(tx_pkt));
|
|
tx_pkt.num_of_bds = 1;
|
|
tx_pkt.l4_hdr_offset_w = (data->length.packet_length) >> 2;
|
|
tx_pkt.tx_dest = QED_LL2_TX_DEST_LB;
|
|
tx_pkt.first_frag = buf->data_phys_addr +
|
|
data->u.placement_offset;
|
|
tx_pkt.first_frag_len = data->length.packet_length;
|
|
tx_pkt.cookie = buf;
|
|
|
|
rc = qed_ll2_prepare_tx_packet(p_hwfn, ll2_syn_handle,
|
|
&tx_pkt, true);
|
|
|
|
if (rc) {
|
|
DP_NOTICE(p_hwfn,
|
|
"Can't post SYN back to chip rc=%d\n", rc);
|
|
goto err;
|
|
}
|
|
return;
|
|
}
|
|
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Received syn on listening port\n");
|
|
/* There may be an open ep on this connection if this is a syn
|
|
* retrasnmit... need to make sure there isn't...
|
|
*/
|
|
if (qed_iwarp_ep_exists(p_hwfn, &cm_info))
|
|
goto err;
|
|
|
|
ep = qed_iwarp_get_free_ep(p_hwfn);
|
|
if (!ep)
|
|
goto err;
|
|
|
|
spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
list_add_tail(&ep->list_entry, &p_hwfn->p_rdma_info->iwarp.ep_list);
|
|
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
|
|
ether_addr_copy(ep->remote_mac_addr, remote_mac_addr);
|
|
ether_addr_copy(ep->local_mac_addr, local_mac_addr);
|
|
|
|
memcpy(&ep->cm_info, &cm_info, sizeof(ep->cm_info));
|
|
|
|
hdr_size = ((cm_info.ip_version == QED_TCP_IPV4) ? 40 : 60);
|
|
ep->mss = p_hwfn->p_rdma_info->iwarp.max_mtu - hdr_size;
|
|
ep->mss = min_t(u16, QED_IWARP_MAX_FW_MSS, ep->mss);
|
|
|
|
ep->event_cb = listener->event_cb;
|
|
ep->cb_context = listener->cb_context;
|
|
ep->connect_mode = TCP_CONNECT_PASSIVE;
|
|
|
|
ep->syn = buf;
|
|
ep->syn_ip_payload_length = (u16)payload_len;
|
|
ep->syn_phy_addr = buf->data_phys_addr + data->u.placement_offset +
|
|
tcp_start_offset;
|
|
|
|
rc = qed_iwarp_tcp_offload(p_hwfn, ep);
|
|
if (rc) {
|
|
qed_iwarp_return_ep(p_hwfn, ep);
|
|
goto err;
|
|
}
|
|
|
|
return;
|
|
err:
|
|
qed_iwarp_ll2_post_rx(p_hwfn, buf, ll2_syn_handle);
|
|
}
|
|
|
|
static void qed_iwarp_ll2_rel_rx_pkt(void *cxt, u8 connection_handle,
|
|
void *cookie, dma_addr_t rx_buf_addr,
|
|
bool b_last_packet)
|
|
{
|
|
struct qed_iwarp_ll2_buff *buffer = cookie;
|
|
struct qed_hwfn *p_hwfn = cxt;
|
|
|
|
dma_free_coherent(&p_hwfn->cdev->pdev->dev, buffer->buff_size,
|
|
buffer->data, buffer->data_phys_addr);
|
|
kfree(buffer);
|
|
}
|
|
|
|
static void qed_iwarp_ll2_comp_tx_pkt(void *cxt, u8 connection_handle,
|
|
void *cookie, dma_addr_t first_frag_addr,
|
|
bool b_last_fragment, bool b_last_packet)
|
|
{
|
|
struct qed_iwarp_ll2_buff *buffer = cookie;
|
|
struct qed_iwarp_ll2_buff *piggy;
|
|
struct qed_hwfn *p_hwfn = cxt;
|
|
|
|
if (!buffer) /* can happen in packed mpa unaligned... */
|
|
return;
|
|
|
|
/* this was originally an rx packet, post it back */
|
|
piggy = buffer->piggy_buf;
|
|
if (piggy) {
|
|
buffer->piggy_buf = NULL;
|
|
qed_iwarp_ll2_post_rx(p_hwfn, piggy, connection_handle);
|
|
}
|
|
|
|
qed_iwarp_ll2_post_rx(p_hwfn, buffer, connection_handle);
|
|
|
|
if (connection_handle == p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle)
|
|
qed_iwarp_process_pending_pkts(p_hwfn);
|
|
|
|
return;
|
|
}
|
|
|
|
static void qed_iwarp_ll2_rel_tx_pkt(void *cxt, u8 connection_handle,
|
|
void *cookie, dma_addr_t first_frag_addr,
|
|
bool b_last_fragment, bool b_last_packet)
|
|
{
|
|
struct qed_iwarp_ll2_buff *buffer = cookie;
|
|
struct qed_hwfn *p_hwfn = cxt;
|
|
|
|
if (!buffer)
|
|
return;
|
|
|
|
if (buffer->piggy_buf) {
|
|
dma_free_coherent(&p_hwfn->cdev->pdev->dev,
|
|
buffer->piggy_buf->buff_size,
|
|
buffer->piggy_buf->data,
|
|
buffer->piggy_buf->data_phys_addr);
|
|
|
|
kfree(buffer->piggy_buf);
|
|
}
|
|
|
|
dma_free_coherent(&p_hwfn->cdev->pdev->dev, buffer->buff_size,
|
|
buffer->data, buffer->data_phys_addr);
|
|
|
|
kfree(buffer);
|
|
}
|
|
|
|
/* The only slowpath for iwarp ll2 is unalign flush. When this completion
|
|
* is received, need to reset the FPDU.
|
|
*/
|
|
static void
|
|
qed_iwarp_ll2_slowpath(void *cxt,
|
|
u8 connection_handle,
|
|
u32 opaque_data_0, u32 opaque_data_1)
|
|
{
|
|
struct unaligned_opaque_data unalign_data;
|
|
struct qed_hwfn *p_hwfn = cxt;
|
|
struct qed_iwarp_fpdu *fpdu;
|
|
|
|
qed_iwarp_mpa_get_data(p_hwfn, &unalign_data,
|
|
opaque_data_0, opaque_data_1);
|
|
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "(0x%x) Flush fpdu\n",
|
|
unalign_data.cid);
|
|
|
|
fpdu = qed_iwarp_get_curr_fpdu(p_hwfn, (u16)unalign_data.cid);
|
|
if (fpdu)
|
|
memset(fpdu, 0, sizeof(*fpdu));
|
|
}
|
|
|
|
static int qed_iwarp_ll2_stop(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
|
|
{
|
|
struct qed_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp;
|
|
int rc = 0;
|
|
|
|
if (iwarp_info->ll2_syn_handle != QED_IWARP_HANDLE_INVAL) {
|
|
rc = qed_ll2_terminate_connection(p_hwfn,
|
|
iwarp_info->ll2_syn_handle);
|
|
if (rc)
|
|
DP_INFO(p_hwfn, "Failed to terminate syn connection\n");
|
|
|
|
qed_ll2_release_connection(p_hwfn, iwarp_info->ll2_syn_handle);
|
|
iwarp_info->ll2_syn_handle = QED_IWARP_HANDLE_INVAL;
|
|
}
|
|
|
|
if (iwarp_info->ll2_ooo_handle != QED_IWARP_HANDLE_INVAL) {
|
|
rc = qed_ll2_terminate_connection(p_hwfn,
|
|
iwarp_info->ll2_ooo_handle);
|
|
if (rc)
|
|
DP_INFO(p_hwfn, "Failed to terminate ooo connection\n");
|
|
|
|
qed_ll2_release_connection(p_hwfn, iwarp_info->ll2_ooo_handle);
|
|
iwarp_info->ll2_ooo_handle = QED_IWARP_HANDLE_INVAL;
|
|
}
|
|
|
|
if (iwarp_info->ll2_mpa_handle != QED_IWARP_HANDLE_INVAL) {
|
|
rc = qed_ll2_terminate_connection(p_hwfn,
|
|
iwarp_info->ll2_mpa_handle);
|
|
if (rc)
|
|
DP_INFO(p_hwfn, "Failed to terminate mpa connection\n");
|
|
|
|
qed_ll2_release_connection(p_hwfn, iwarp_info->ll2_mpa_handle);
|
|
iwarp_info->ll2_mpa_handle = QED_IWARP_HANDLE_INVAL;
|
|
}
|
|
|
|
qed_llh_remove_mac_filter(p_hwfn,
|
|
p_ptt, p_hwfn->p_rdma_info->iwarp.mac_addr);
|
|
return rc;
|
|
}
|
|
|
|
static int
|
|
qed_iwarp_ll2_alloc_buffers(struct qed_hwfn *p_hwfn,
|
|
int num_rx_bufs, int buff_size, u8 ll2_handle)
|
|
{
|
|
struct qed_iwarp_ll2_buff *buffer;
|
|
int rc = 0;
|
|
int i;
|
|
|
|
for (i = 0; i < num_rx_bufs; i++) {
|
|
buffer = kzalloc(sizeof(*buffer), GFP_KERNEL);
|
|
if (!buffer) {
|
|
rc = -ENOMEM;
|
|
break;
|
|
}
|
|
|
|
buffer->data = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
|
|
buff_size,
|
|
&buffer->data_phys_addr,
|
|
GFP_KERNEL);
|
|
if (!buffer->data) {
|
|
kfree(buffer);
|
|
rc = -ENOMEM;
|
|
break;
|
|
}
|
|
|
|
buffer->buff_size = buff_size;
|
|
rc = qed_iwarp_ll2_post_rx(p_hwfn, buffer, ll2_handle);
|
|
if (rc)
|
|
/* buffers will be deallocated by qed_ll2 */
|
|
break;
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
#define QED_IWARP_MAX_BUF_SIZE(mtu) \
|
|
ALIGN((mtu) + ETH_HLEN + 2 * VLAN_HLEN + 2 + ETH_CACHE_LINE_SIZE, \
|
|
ETH_CACHE_LINE_SIZE)
|
|
|
|
static int
|
|
qed_iwarp_ll2_start(struct qed_hwfn *p_hwfn,
|
|
struct qed_rdma_start_in_params *params,
|
|
struct qed_ptt *p_ptt)
|
|
{
|
|
struct qed_iwarp_info *iwarp_info;
|
|
struct qed_ll2_acquire_data data;
|
|
struct qed_ll2_cbs cbs;
|
|
u32 mpa_buff_size;
|
|
u16 n_ooo_bufs;
|
|
int rc = 0;
|
|
int i;
|
|
|
|
iwarp_info = &p_hwfn->p_rdma_info->iwarp;
|
|
iwarp_info->ll2_syn_handle = QED_IWARP_HANDLE_INVAL;
|
|
iwarp_info->ll2_ooo_handle = QED_IWARP_HANDLE_INVAL;
|
|
iwarp_info->ll2_mpa_handle = QED_IWARP_HANDLE_INVAL;
|
|
|
|
iwarp_info->max_mtu = params->max_mtu;
|
|
|
|
ether_addr_copy(p_hwfn->p_rdma_info->iwarp.mac_addr, params->mac_addr);
|
|
|
|
rc = qed_llh_add_mac_filter(p_hwfn, p_ptt, params->mac_addr);
|
|
if (rc)
|
|
return rc;
|
|
|
|
/* Start SYN connection */
|
|
cbs.rx_comp_cb = qed_iwarp_ll2_comp_syn_pkt;
|
|
cbs.rx_release_cb = qed_iwarp_ll2_rel_rx_pkt;
|
|
cbs.tx_comp_cb = qed_iwarp_ll2_comp_tx_pkt;
|
|
cbs.tx_release_cb = qed_iwarp_ll2_rel_tx_pkt;
|
|
cbs.cookie = p_hwfn;
|
|
|
|
memset(&data, 0, sizeof(data));
|
|
data.input.conn_type = QED_LL2_TYPE_IWARP;
|
|
data.input.mtu = QED_IWARP_MAX_SYN_PKT_SIZE;
|
|
data.input.rx_num_desc = QED_IWARP_LL2_SYN_RX_SIZE;
|
|
data.input.tx_num_desc = QED_IWARP_LL2_SYN_TX_SIZE;
|
|
data.input.tx_max_bds_per_packet = 1; /* will never be fragmented */
|
|
data.input.tx_tc = PKT_LB_TC;
|
|
data.input.tx_dest = QED_LL2_TX_DEST_LB;
|
|
data.p_connection_handle = &iwarp_info->ll2_syn_handle;
|
|
data.cbs = &cbs;
|
|
|
|
rc = qed_ll2_acquire_connection(p_hwfn, &data);
|
|
if (rc) {
|
|
DP_NOTICE(p_hwfn, "Failed to acquire LL2 connection\n");
|
|
qed_llh_remove_mac_filter(p_hwfn, p_ptt, params->mac_addr);
|
|
return rc;
|
|
}
|
|
|
|
rc = qed_ll2_establish_connection(p_hwfn, iwarp_info->ll2_syn_handle);
|
|
if (rc) {
|
|
DP_NOTICE(p_hwfn, "Failed to establish LL2 connection\n");
|
|
goto err;
|
|
}
|
|
|
|
rc = qed_iwarp_ll2_alloc_buffers(p_hwfn,
|
|
QED_IWARP_LL2_SYN_RX_SIZE,
|
|
QED_IWARP_MAX_SYN_PKT_SIZE,
|
|
iwarp_info->ll2_syn_handle);
|
|
if (rc)
|
|
goto err;
|
|
|
|
/* Start OOO connection */
|
|
data.input.conn_type = QED_LL2_TYPE_OOO;
|
|
data.input.mtu = params->max_mtu;
|
|
|
|
n_ooo_bufs = (QED_IWARP_MAX_OOO * QED_IWARP_RCV_WND_SIZE_DEF) /
|
|
iwarp_info->max_mtu;
|
|
n_ooo_bufs = min_t(u32, n_ooo_bufs, QED_IWARP_LL2_OOO_MAX_RX_SIZE);
|
|
|
|
data.input.rx_num_desc = n_ooo_bufs;
|
|
data.input.rx_num_ooo_buffers = n_ooo_bufs;
|
|
|
|
data.input.tx_max_bds_per_packet = 1; /* will never be fragmented */
|
|
data.input.tx_num_desc = QED_IWARP_LL2_OOO_DEF_TX_SIZE;
|
|
data.p_connection_handle = &iwarp_info->ll2_ooo_handle;
|
|
|
|
rc = qed_ll2_acquire_connection(p_hwfn, &data);
|
|
if (rc)
|
|
goto err;
|
|
|
|
rc = qed_ll2_establish_connection(p_hwfn, iwarp_info->ll2_ooo_handle);
|
|
if (rc)
|
|
goto err;
|
|
|
|
/* Start Unaligned MPA connection */
|
|
cbs.rx_comp_cb = qed_iwarp_ll2_comp_mpa_pkt;
|
|
cbs.slowpath_cb = qed_iwarp_ll2_slowpath;
|
|
|
|
memset(&data, 0, sizeof(data));
|
|
data.input.conn_type = QED_LL2_TYPE_IWARP;
|
|
data.input.mtu = params->max_mtu;
|
|
/* FW requires that once a packet arrives OOO, it must have at
|
|
* least 2 rx buffers available on the unaligned connection
|
|
* for handling the case that it is a partial fpdu.
|
|
*/
|
|
data.input.rx_num_desc = n_ooo_bufs * 2;
|
|
data.input.tx_num_desc = data.input.rx_num_desc;
|
|
data.input.tx_max_bds_per_packet = QED_IWARP_MAX_BDS_PER_FPDU;
|
|
data.p_connection_handle = &iwarp_info->ll2_mpa_handle;
|
|
data.input.secondary_queue = true;
|
|
data.cbs = &cbs;
|
|
|
|
rc = qed_ll2_acquire_connection(p_hwfn, &data);
|
|
if (rc)
|
|
goto err;
|
|
|
|
rc = qed_ll2_establish_connection(p_hwfn, iwarp_info->ll2_mpa_handle);
|
|
if (rc)
|
|
goto err;
|
|
|
|
mpa_buff_size = QED_IWARP_MAX_BUF_SIZE(params->max_mtu);
|
|
rc = qed_iwarp_ll2_alloc_buffers(p_hwfn,
|
|
data.input.rx_num_desc,
|
|
mpa_buff_size,
|
|
iwarp_info->ll2_mpa_handle);
|
|
if (rc)
|
|
goto err;
|
|
|
|
iwarp_info->partial_fpdus = kcalloc((u16)p_hwfn->p_rdma_info->num_qps,
|
|
sizeof(*iwarp_info->partial_fpdus),
|
|
GFP_KERNEL);
|
|
if (!iwarp_info->partial_fpdus)
|
|
goto err;
|
|
|
|
iwarp_info->max_num_partial_fpdus = (u16)p_hwfn->p_rdma_info->num_qps;
|
|
|
|
iwarp_info->mpa_intermediate_buf = kzalloc(mpa_buff_size, GFP_KERNEL);
|
|
if (!iwarp_info->mpa_intermediate_buf)
|
|
goto err;
|
|
|
|
/* The mpa_bufs array serves for pending RX packets received on the
|
|
* mpa ll2 that don't have place on the tx ring and require later
|
|
* processing. We can't fail on allocation of such a struct therefore
|
|
* we allocate enough to take care of all rx packets
|
|
*/
|
|
iwarp_info->mpa_bufs = kcalloc(data.input.rx_num_desc,
|
|
sizeof(*iwarp_info->mpa_bufs),
|
|
GFP_KERNEL);
|
|
if (!iwarp_info->mpa_bufs)
|
|
goto err;
|
|
|
|
INIT_LIST_HEAD(&iwarp_info->mpa_buf_pending_list);
|
|
INIT_LIST_HEAD(&iwarp_info->mpa_buf_list);
|
|
for (i = 0; i < data.input.rx_num_desc; i++)
|
|
list_add_tail(&iwarp_info->mpa_bufs[i].list_entry,
|
|
&iwarp_info->mpa_buf_list);
|
|
return rc;
|
|
err:
|
|
qed_iwarp_ll2_stop(p_hwfn, p_ptt);
|
|
|
|
return rc;
|
|
}
|
|
|
|
int qed_iwarp_setup(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
|
|
struct qed_rdma_start_in_params *params)
|
|
{
|
|
struct qed_iwarp_info *iwarp_info;
|
|
u32 rcv_wnd_size;
|
|
|
|
iwarp_info = &p_hwfn->p_rdma_info->iwarp;
|
|
|
|
iwarp_info->tcp_flags = QED_IWARP_TS_EN;
|
|
rcv_wnd_size = QED_IWARP_RCV_WND_SIZE_DEF;
|
|
|
|
/* value 0 is used for ilog2(QED_IWARP_RCV_WND_SIZE_MIN) */
|
|
iwarp_info->rcv_wnd_scale = ilog2(rcv_wnd_size) -
|
|
ilog2(QED_IWARP_RCV_WND_SIZE_MIN);
|
|
iwarp_info->rcv_wnd_size = rcv_wnd_size >> iwarp_info->rcv_wnd_scale;
|
|
iwarp_info->crc_needed = QED_IWARP_PARAM_CRC_NEEDED;
|
|
iwarp_info->mpa_rev = MPA_NEGOTIATION_TYPE_ENHANCED;
|
|
|
|
iwarp_info->peer2peer = QED_IWARP_PARAM_P2P;
|
|
|
|
iwarp_info->rtr_type = MPA_RTR_TYPE_ZERO_SEND |
|
|
MPA_RTR_TYPE_ZERO_WRITE |
|
|
MPA_RTR_TYPE_ZERO_READ;
|
|
|
|
spin_lock_init(&p_hwfn->p_rdma_info->iwarp.qp_lock);
|
|
INIT_LIST_HEAD(&p_hwfn->p_rdma_info->iwarp.ep_list);
|
|
INIT_LIST_HEAD(&p_hwfn->p_rdma_info->iwarp.listen_list);
|
|
|
|
qed_spq_register_async_cb(p_hwfn, PROTOCOLID_IWARP,
|
|
qed_iwarp_async_event);
|
|
qed_ooo_setup(p_hwfn);
|
|
|
|
return qed_iwarp_ll2_start(p_hwfn, params, p_ptt);
|
|
}
|
|
|
|
int qed_iwarp_stop(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
|
|
{
|
|
int rc;
|
|
|
|
qed_iwarp_free_prealloc_ep(p_hwfn);
|
|
rc = qed_iwarp_wait_for_all_cids(p_hwfn);
|
|
if (rc)
|
|
return rc;
|
|
|
|
qed_spq_unregister_async_cb(p_hwfn, PROTOCOLID_IWARP);
|
|
|
|
return qed_iwarp_ll2_stop(p_hwfn, p_ptt);
|
|
}
|
|
|
|
static void qed_iwarp_qp_in_error(struct qed_hwfn *p_hwfn,
|
|
struct qed_iwarp_ep *ep,
|
|
u8 fw_return_code)
|
|
{
|
|
struct qed_iwarp_cm_event_params params;
|
|
|
|
qed_iwarp_modify_qp(p_hwfn, ep->qp, QED_IWARP_QP_STATE_ERROR, true);
|
|
|
|
params.event = QED_IWARP_EVENT_CLOSE;
|
|
params.ep_context = ep;
|
|
params.cm_info = &ep->cm_info;
|
|
params.status = (fw_return_code == IWARP_QP_IN_ERROR_GOOD_CLOSE) ?
|
|
0 : -ECONNRESET;
|
|
|
|
ep->state = QED_IWARP_EP_CLOSED;
|
|
spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
list_del(&ep->list_entry);
|
|
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
|
|
ep->event_cb(ep->cb_context, ¶ms);
|
|
}
|
|
|
|
static void qed_iwarp_exception_received(struct qed_hwfn *p_hwfn,
|
|
struct qed_iwarp_ep *ep,
|
|
int fw_ret_code)
|
|
{
|
|
struct qed_iwarp_cm_event_params params;
|
|
bool event_cb = false;
|
|
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "EP(0x%x) fw_ret_code=%d\n",
|
|
ep->cid, fw_ret_code);
|
|
|
|
switch (fw_ret_code) {
|
|
case IWARP_EXCEPTION_DETECTED_LLP_CLOSED:
|
|
params.status = 0;
|
|
params.event = QED_IWARP_EVENT_DISCONNECT;
|
|
event_cb = true;
|
|
break;
|
|
case IWARP_EXCEPTION_DETECTED_LLP_RESET:
|
|
params.status = -ECONNRESET;
|
|
params.event = QED_IWARP_EVENT_DISCONNECT;
|
|
event_cb = true;
|
|
break;
|
|
case IWARP_EXCEPTION_DETECTED_RQ_EMPTY:
|
|
params.event = QED_IWARP_EVENT_RQ_EMPTY;
|
|
event_cb = true;
|
|
break;
|
|
case IWARP_EXCEPTION_DETECTED_IRQ_FULL:
|
|
params.event = QED_IWARP_EVENT_IRQ_FULL;
|
|
event_cb = true;
|
|
break;
|
|
case IWARP_EXCEPTION_DETECTED_LLP_TIMEOUT:
|
|
params.event = QED_IWARP_EVENT_LLP_TIMEOUT;
|
|
event_cb = true;
|
|
break;
|
|
case IWARP_EXCEPTION_DETECTED_REMOTE_PROTECTION_ERROR:
|
|
params.event = QED_IWARP_EVENT_REMOTE_PROTECTION_ERROR;
|
|
event_cb = true;
|
|
break;
|
|
case IWARP_EXCEPTION_DETECTED_CQ_OVERFLOW:
|
|
params.event = QED_IWARP_EVENT_CQ_OVERFLOW;
|
|
event_cb = true;
|
|
break;
|
|
case IWARP_EXCEPTION_DETECTED_LOCAL_CATASTROPHIC:
|
|
params.event = QED_IWARP_EVENT_QP_CATASTROPHIC;
|
|
event_cb = true;
|
|
break;
|
|
case IWARP_EXCEPTION_DETECTED_LOCAL_ACCESS_ERROR:
|
|
params.event = QED_IWARP_EVENT_LOCAL_ACCESS_ERROR;
|
|
event_cb = true;
|
|
break;
|
|
case IWARP_EXCEPTION_DETECTED_REMOTE_OPERATION_ERROR:
|
|
params.event = QED_IWARP_EVENT_REMOTE_OPERATION_ERROR;
|
|
event_cb = true;
|
|
break;
|
|
case IWARP_EXCEPTION_DETECTED_TERMINATE_RECEIVED:
|
|
params.event = QED_IWARP_EVENT_TERMINATE_RECEIVED;
|
|
event_cb = true;
|
|
break;
|
|
default:
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"Unhandled exception received...fw_ret_code=%d\n",
|
|
fw_ret_code);
|
|
break;
|
|
}
|
|
|
|
if (event_cb) {
|
|
params.ep_context = ep;
|
|
params.cm_info = &ep->cm_info;
|
|
ep->event_cb(ep->cb_context, ¶ms);
|
|
}
|
|
}
|
|
|
|
static void
|
|
qed_iwarp_tcp_connect_unsuccessful(struct qed_hwfn *p_hwfn,
|
|
struct qed_iwarp_ep *ep, u8 fw_return_code)
|
|
{
|
|
struct qed_iwarp_cm_event_params params;
|
|
|
|
memset(¶ms, 0, sizeof(params));
|
|
params.event = QED_IWARP_EVENT_ACTIVE_COMPLETE;
|
|
params.ep_context = ep;
|
|
params.cm_info = &ep->cm_info;
|
|
ep->state = QED_IWARP_EP_CLOSED;
|
|
|
|
switch (fw_return_code) {
|
|
case IWARP_CONN_ERROR_TCP_CONNECT_INVALID_PACKET:
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"%s(0x%x) TCP connect got invalid packet\n",
|
|
QED_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid);
|
|
params.status = -ECONNRESET;
|
|
break;
|
|
case IWARP_CONN_ERROR_TCP_CONNECTION_RST:
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"%s(0x%x) TCP Connection Reset\n",
|
|
QED_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid);
|
|
params.status = -ECONNRESET;
|
|
break;
|
|
case IWARP_CONN_ERROR_TCP_CONNECT_TIMEOUT:
|
|
DP_NOTICE(p_hwfn, "%s(0x%x) TCP timeout\n",
|
|
QED_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid);
|
|
params.status = -EBUSY;
|
|
break;
|
|
case IWARP_CONN_ERROR_MPA_NOT_SUPPORTED_VER:
|
|
DP_NOTICE(p_hwfn, "%s(0x%x) MPA not supported VER\n",
|
|
QED_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid);
|
|
params.status = -ECONNREFUSED;
|
|
break;
|
|
case IWARP_CONN_ERROR_MPA_INVALID_PACKET:
|
|
DP_NOTICE(p_hwfn, "%s(0x%x) MPA Invalid Packet\n",
|
|
QED_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid);
|
|
params.status = -ECONNRESET;
|
|
break;
|
|
default:
|
|
DP_ERR(p_hwfn,
|
|
"%s(0x%x) Unexpected return code tcp connect: %d\n",
|
|
QED_IWARP_CONNECT_MODE_STRING(ep),
|
|
ep->tcp_cid, fw_return_code);
|
|
params.status = -ECONNRESET;
|
|
break;
|
|
}
|
|
|
|
if (ep->connect_mode == TCP_CONNECT_PASSIVE) {
|
|
ep->tcp_cid = QED_IWARP_INVALID_TCP_CID;
|
|
qed_iwarp_return_ep(p_hwfn, ep);
|
|
} else {
|
|
ep->event_cb(ep->cb_context, ¶ms);
|
|
spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
list_del(&ep->list_entry);
|
|
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
}
|
|
}
|
|
|
|
static void
|
|
qed_iwarp_connect_complete(struct qed_hwfn *p_hwfn,
|
|
struct qed_iwarp_ep *ep, u8 fw_return_code)
|
|
{
|
|
u8 ll2_syn_handle = p_hwfn->p_rdma_info->iwarp.ll2_syn_handle;
|
|
|
|
if (ep->connect_mode == TCP_CONNECT_PASSIVE) {
|
|
/* Done with the SYN packet, post back to ll2 rx */
|
|
qed_iwarp_ll2_post_rx(p_hwfn, ep->syn, ll2_syn_handle);
|
|
|
|
ep->syn = NULL;
|
|
|
|
/* If connect failed - upper layer doesn't know about it */
|
|
if (fw_return_code == RDMA_RETURN_OK)
|
|
qed_iwarp_mpa_received(p_hwfn, ep);
|
|
else
|
|
qed_iwarp_tcp_connect_unsuccessful(p_hwfn, ep,
|
|
fw_return_code);
|
|
} else {
|
|
if (fw_return_code == RDMA_RETURN_OK)
|
|
qed_iwarp_mpa_offload(p_hwfn, ep);
|
|
else
|
|
qed_iwarp_tcp_connect_unsuccessful(p_hwfn, ep,
|
|
fw_return_code);
|
|
}
|
|
}
|
|
|
|
static inline bool
|
|
qed_iwarp_check_ep_ok(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep)
|
|
{
|
|
if (!ep || (ep->sig != QED_EP_SIG)) {
|
|
DP_ERR(p_hwfn, "ERROR ON ASYNC ep=%p\n", ep);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static int qed_iwarp_async_event(struct qed_hwfn *p_hwfn,
|
|
u8 fw_event_code, u16 echo,
|
|
union event_ring_data *data,
|
|
u8 fw_return_code)
|
|
{
|
|
struct qed_rdma_events events = p_hwfn->p_rdma_info->events;
|
|
struct regpair *fw_handle = &data->rdma_data.async_handle;
|
|
struct qed_iwarp_ep *ep = NULL;
|
|
u16 srq_offset;
|
|
u16 srq_id;
|
|
u16 cid;
|
|
|
|
ep = (struct qed_iwarp_ep *)(uintptr_t)HILO_64(fw_handle->hi,
|
|
fw_handle->lo);
|
|
|
|
switch (fw_event_code) {
|
|
case IWARP_EVENT_TYPE_ASYNC_CONNECT_COMPLETE:
|
|
/* Async completion after TCP 3-way handshake */
|
|
if (!qed_iwarp_check_ep_ok(p_hwfn, ep))
|
|
return -EINVAL;
|
|
DP_VERBOSE(p_hwfn,
|
|
QED_MSG_RDMA,
|
|
"EP(0x%x) IWARP_EVENT_TYPE_ASYNC_CONNECT_COMPLETE fw_ret_code=%d\n",
|
|
ep->tcp_cid, fw_return_code);
|
|
qed_iwarp_connect_complete(p_hwfn, ep, fw_return_code);
|
|
break;
|
|
case IWARP_EVENT_TYPE_ASYNC_EXCEPTION_DETECTED:
|
|
if (!qed_iwarp_check_ep_ok(p_hwfn, ep))
|
|
return -EINVAL;
|
|
DP_VERBOSE(p_hwfn,
|
|
QED_MSG_RDMA,
|
|
"QP(0x%x) IWARP_EVENT_TYPE_ASYNC_EXCEPTION_DETECTED fw_ret_code=%d\n",
|
|
ep->cid, fw_return_code);
|
|
qed_iwarp_exception_received(p_hwfn, ep, fw_return_code);
|
|
break;
|
|
case IWARP_EVENT_TYPE_ASYNC_QP_IN_ERROR_STATE:
|
|
/* Async completion for Close Connection ramrod */
|
|
if (!qed_iwarp_check_ep_ok(p_hwfn, ep))
|
|
return -EINVAL;
|
|
DP_VERBOSE(p_hwfn,
|
|
QED_MSG_RDMA,
|
|
"QP(0x%x) IWARP_EVENT_TYPE_ASYNC_QP_IN_ERROR_STATE fw_ret_code=%d\n",
|
|
ep->cid, fw_return_code);
|
|
qed_iwarp_qp_in_error(p_hwfn, ep, fw_return_code);
|
|
break;
|
|
case IWARP_EVENT_TYPE_ASYNC_ENHANCED_MPA_REPLY_ARRIVED:
|
|
/* Async event for active side only */
|
|
if (!qed_iwarp_check_ep_ok(p_hwfn, ep))
|
|
return -EINVAL;
|
|
DP_VERBOSE(p_hwfn,
|
|
QED_MSG_RDMA,
|
|
"QP(0x%x) IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_MPA_REPLY_ARRIVED fw_ret_code=%d\n",
|
|
ep->cid, fw_return_code);
|
|
qed_iwarp_mpa_reply_arrived(p_hwfn, ep);
|
|
break;
|
|
case IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_COMPLETE:
|
|
if (!qed_iwarp_check_ep_ok(p_hwfn, ep))
|
|
return -EINVAL;
|
|
DP_VERBOSE(p_hwfn,
|
|
QED_MSG_RDMA,
|
|
"QP(0x%x) IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_COMPLETE fw_ret_code=%d\n",
|
|
ep->cid, fw_return_code);
|
|
qed_iwarp_mpa_complete(p_hwfn, ep, fw_return_code);
|
|
break;
|
|
case IWARP_EVENT_TYPE_ASYNC_CID_CLEANED:
|
|
cid = (u16)le32_to_cpu(fw_handle->lo);
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
|
|
"(0x%x)IWARP_EVENT_TYPE_ASYNC_CID_CLEANED\n", cid);
|
|
qed_iwarp_cid_cleaned(p_hwfn, cid);
|
|
|
|
break;
|
|
case IWARP_EVENT_TYPE_ASYNC_SRQ_EMPTY:
|
|
DP_NOTICE(p_hwfn, "IWARP_EVENT_TYPE_ASYNC_SRQ_EMPTY\n");
|
|
srq_offset = p_hwfn->p_rdma_info->srq_id_offset;
|
|
/* FW assigns value that is no greater than u16 */
|
|
srq_id = ((u16)le32_to_cpu(fw_handle->lo)) - srq_offset;
|
|
events.affiliated_event(events.context,
|
|
QED_IWARP_EVENT_SRQ_EMPTY,
|
|
&srq_id);
|
|
break;
|
|
case IWARP_EVENT_TYPE_ASYNC_SRQ_LIMIT:
|
|
DP_NOTICE(p_hwfn, "IWARP_EVENT_TYPE_ASYNC_SRQ_LIMIT\n");
|
|
srq_offset = p_hwfn->p_rdma_info->srq_id_offset;
|
|
/* FW assigns value that is no greater than u16 */
|
|
srq_id = ((u16)le32_to_cpu(fw_handle->lo)) - srq_offset;
|
|
events.affiliated_event(events.context,
|
|
QED_IWARP_EVENT_SRQ_LIMIT,
|
|
&srq_id);
|
|
break;
|
|
case IWARP_EVENT_TYPE_ASYNC_CQ_OVERFLOW:
|
|
DP_NOTICE(p_hwfn, "IWARP_EVENT_TYPE_ASYNC_CQ_OVERFLOW\n");
|
|
|
|
p_hwfn->p_rdma_info->events.affiliated_event(
|
|
p_hwfn->p_rdma_info->events.context,
|
|
QED_IWARP_EVENT_CQ_OVERFLOW,
|
|
(void *)fw_handle);
|
|
break;
|
|
default:
|
|
DP_ERR(p_hwfn, "Received unexpected async iwarp event %d\n",
|
|
fw_event_code);
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
qed_iwarp_create_listen(void *rdma_cxt,
|
|
struct qed_iwarp_listen_in *iparams,
|
|
struct qed_iwarp_listen_out *oparams)
|
|
{
|
|
struct qed_hwfn *p_hwfn = rdma_cxt;
|
|
struct qed_iwarp_listener *listener;
|
|
|
|
listener = kzalloc(sizeof(*listener), GFP_KERNEL);
|
|
if (!listener)
|
|
return -ENOMEM;
|
|
|
|
listener->ip_version = iparams->ip_version;
|
|
memcpy(listener->ip_addr, iparams->ip_addr, sizeof(listener->ip_addr));
|
|
listener->port = iparams->port;
|
|
listener->vlan = iparams->vlan;
|
|
|
|
listener->event_cb = iparams->event_cb;
|
|
listener->cb_context = iparams->cb_context;
|
|
listener->max_backlog = iparams->max_backlog;
|
|
oparams->handle = listener;
|
|
|
|
spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
list_add_tail(&listener->list_entry,
|
|
&p_hwfn->p_rdma_info->iwarp.listen_list);
|
|
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
|
|
DP_VERBOSE(p_hwfn,
|
|
QED_MSG_RDMA,
|
|
"callback=%p handle=%p ip=%x:%x:%x:%x port=0x%x vlan=0x%x\n",
|
|
listener->event_cb,
|
|
listener,
|
|
listener->ip_addr[0],
|
|
listener->ip_addr[1],
|
|
listener->ip_addr[2],
|
|
listener->ip_addr[3], listener->port, listener->vlan);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int qed_iwarp_destroy_listen(void *rdma_cxt, void *handle)
|
|
{
|
|
struct qed_iwarp_listener *listener = handle;
|
|
struct qed_hwfn *p_hwfn = rdma_cxt;
|
|
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "handle=%p\n", handle);
|
|
|
|
spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
list_del(&listener->list_entry);
|
|
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
|
|
|
|
kfree(listener);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int qed_iwarp_send_rtr(void *rdma_cxt, struct qed_iwarp_send_rtr_in *iparams)
|
|
{
|
|
struct qed_hwfn *p_hwfn = rdma_cxt;
|
|
struct qed_sp_init_data init_data;
|
|
struct qed_spq_entry *p_ent;
|
|
struct qed_iwarp_ep *ep;
|
|
struct qed_rdma_qp *qp;
|
|
int rc;
|
|
|
|
ep = iparams->ep_context;
|
|
if (!ep) {
|
|
DP_ERR(p_hwfn, "Ep Context receive in send_rtr is NULL\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
qp = ep->qp;
|
|
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x) EP(0x%x)\n",
|
|
qp->icid, ep->tcp_cid);
|
|
|
|
memset(&init_data, 0, sizeof(init_data));
|
|
init_data.cid = qp->icid;
|
|
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
|
|
init_data.comp_mode = QED_SPQ_MODE_CB;
|
|
|
|
rc = qed_sp_init_request(p_hwfn, &p_ent,
|
|
IWARP_RAMROD_CMD_ID_MPA_OFFLOAD_SEND_RTR,
|
|
PROTOCOLID_IWARP, &init_data);
|
|
|
|
if (rc)
|
|
return rc;
|
|
|
|
rc = qed_spq_post(p_hwfn, p_ent, NULL);
|
|
|
|
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = 0x%x\n", rc);
|
|
|
|
return rc;
|
|
}
|
|
|
|
void
|
|
qed_iwarp_query_qp(struct qed_rdma_qp *qp,
|
|
struct qed_rdma_query_qp_out_params *out_params)
|
|
{
|
|
out_params->state = qed_iwarp2roce_state(qp->iwarp_state);
|
|
}
|